OVERLAND STORAGE REO 4600 (01) PDF MANUAL


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PDF Content Summary: Overland Storage REO 4600 with Protection OS® 6.0 User Guide

January 2010 10400253-101 Overland Storage, Inc. 4820 Overland Avenue San Diego, CA 92123 U.S.A. Tel: 1.877.654.3429 (toll-free U.S.) Tel: +1.858.571.5555 Option 5 (International) Fax: +1.858.571.0982 (general) Fax: +1.858.571.3664 (sales) overlandstorage.com REO 4600 User Guide ©2007–10 Overland Storage, Inc. All rights reserved. Overland®, Overland Data®, Overland Storage®, ARCvault®, LibraryPro®, LoaderXpress®, Multi-SitePAC®, NEO®, NEO Series®, PowerLoader®, Protection OS®, REO®, REO 4000®, REO Series®, Snap Care®, SnapServer®, StorAssure®, ULTAMUS®, VR2®, WebTLC®, and XchangeNOW® are registered trademarks of Overland Storage, Inc. GuardianOSTM, SnapWriteTM, Snap Enterprise Data ReplicatorTM, and Snap Server ManagerTM are trademarks of Overland Storage, Inc. All other brand names or trademarks are the property of their respective owners. The names of companies and individuals used in examples are fictitious and intended to illustrate the use of the software. Any resemblance to actual companies or individuals, whether past or present, is coincidental. PROPRIETARY NOTICE All information contained in or disclosed by this document is considered proprietary by Overland Storage. By accepting this material the recipient agrees that this material and the information contained therein are held in confidence and in trust and will not be used, reproduced in whole or in part, nor its contents revealed to others, except to meet the purpose for which it was delivered. It is understood that no right is conveyed to reproduce or have reproduced any item herein disclosed without express permission from Overland Storage. Overland Storage provides this manual as is, without warranty of any kind, either expressed or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. Overland Storage may make improvements or changes in the products or programs described in this manual at any time. These changes will be incorporated in new editions of this publication. Overland Storage assumes no responsibility for the accuracy, completeness, sufficiency, or usefulness of this manual, nor for any problem that might arise from the use of the information in this manual. FW 6.0.0.43 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ ii 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ iii Preface About this Guide The Overland Storage REO 4600 REO 4600 appliance serves as a shared network resource by utilizing high-capacity disks; high-speed Ethernet, Fibre Channel, and Internet SCSI (iSCSI) connectivity; and unique software intelligence capability. The REO 4600 comes with a standard software package called Protection OS® already installed. Protection OS software contains all the basic features that you need to configure your REO 4600 to work within your network environment. This document includes information that helps you set up the REO 4600, including system requirements, questions that you need to answer before installing the product, and installation procedures. ConventionsThis user guide exercises several typographical conventions to help explain how to use the REO 4600 appliance. Convention Description & Usage Boldface Words in boldface indicate items to select such as menu items or command buttons. Ctrl-Alt-r This type of format details the keys you press simultaneously. In this example, hold down the Ctrl and Alt keys and press the r key. NOTE A Note indicates neutral or positive information that emphasizes or supplements important points of the main text. A note supplies information that may apply only in special cases—for example, memory limitations or details that apply to specific versions of a program. IMPORTANT An Important note is a type of note that provides information essential to the completion of a task or that can impact the product and its function. CAUTION A Caution contains information that the user needs to know to avoid damaging or permanently deleting data or causing physical damage to the hardware or system. REO 4600 User Guide Convention Description & Usage WARNING A Warning contains information essential to people’s safety. It advises users that failure to take or avoid a specific action could result in physical harm to the user or hardware. Flow Indicator (>) Words in bold font with a greater than sign between them indicate the flow of actions to accomplish a task. For example, Setup > Passwords > User indicates that you should press the Setup button, then the Passwords button, and finally the User button to accomplish a task. Software Updates The latest release of the Protection OS® software can be obtained from the Overland Storage FTP site. 1. Point your browser to ftp://ftp.overlandstorage.com/Software/REO/. 2. Open the appropriate version folder. 3. Download the latest software file labeled overland_nnnn.upgrade (where “nnnn” represents the latest version number). For additional assistance, search at support.overlandstorage.com/. Product Documentation The REO product documentation and additional literature are available online at: overlandstorage.com. Overland Technical Support For assistance configuring and using your appliance, search for help at: support.overlandstorage.com/ Our Overland Storage Technical Support staff is also available to assist you at: 1 (877) 654-3429 (Toll-free and active only in US and Canada) +1 (858) 571-5555 Option 5 (Worldwide) They are available on normal business days, 6 AM through 5 PM (PST), excluding Overland holidays. At all other times we will respond to technical support calls within 4 hours. Technical support for our EMEA customers is available from our UK office at: +44 (0) 118-9898050 8:00 AM to 5:00 PM (GMT) Monday through Friday You can e-mail our technical support staff at techsupport@overlandstorage.com or get additional technical support information on the Contact Us web page. 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ iv REO 4600 User Guide Electrostatic Discharge Information A discharge of static electricity can damage micro-circuitry or static-sensitive devices. To help prevent Electrostatic Discharge (ESD), observe the following precautions: • Transport and store items in static-safe containers. • Keep electrostatic-sensitive parts in their containers. • Use properly-grounded tools. • Make sure you are always properly grounded. • Keep the work area free of non-conductive materials. • Avoid touching pins, leads, or circuitry. 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ v 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ vi Contents Chapter 1 - Introduction and Requirements Overview .....................................................................................................................................................1-1 Reviewing Pre-Installation Requirements ................................................................................................. 1-1 Network .................................................................................................................................................. 1-2 Initiators .................................................................................................................................................. 1-2 Browser ................................................................................................................................................... 1-2 Chapter 2 - Hardware Setup First Things First—Activate Your Warranty! ................................................................................................ 2-1 Installation Preparation .............................................................................................................................. 2-2 Unpacking the REO Appliance ........................................................................................................... 2-2 Installing the Rail Kit .............................................................................................................................. 2-2 Attach the Inner Rails to Chassis ................................................................................................... 2-3 Squared-Holed Rack Installation ................................................................................................... 2-4 Round-Holed Rack Installation (Early Models) ............................................................................. 2-4 Round/Threaded-Holed Rack Installation .................................................................................... 2-5 Rack Installation .......................................................................................................................................... 2-6 Installing the Appliance in the Rack ................................................................................................... 2-6 Installing Disk Drives ............................................................................................................................... 2-7 Attaching Cables ....................................................................................................................................... 2-8 Connecting a UPS ...................................................................................................................................... 2-9 Chapter 3 - Powering Up the Appliance Disk Insertion Verification ........................................................................................................................... 3-1 Enabling Power ........................................................................................................................................... 3-1 Power Supplies ...................................................................................................................................... 3-1 Shutting Down the Appliance ................................................................................................................... 3-3 Backup Power ............................................................................................................................................. 3-4 UPS Power Monitoring .......................................................................................................................... 3-4 Behavior When Connected to UPS ..................................................................................................... 3-5 Supported UPS Models ......................................................................................................................... 3-5 Chapter 4 - Configuring Your Appliance Set Up Network Addressing ....................................................................................................................... 4-1 Logging On ............................................................................................................................................ 4-1 Entering Configuration Settings for the Management Port ............................................................. 4-3 Configuring the GbE Data Ports ............................................................................................................... 4-4 Configuring FC Data Ports ......................................................................................................................... 4-5 Entering the System Information ............................................................................................................... 4-6 REO 4600 User Guide Setting the Local Time ................................................................................................................................ 4-9 RAID Setup ................................................................................................................................................. 4-11 RAID Setup with One or More Expansion Units ................................................................................ 4-11 Chapter 5 - Virtual Tape Library Setup Adding a VTL ............................................................................................................................................... 5-1 Modifying Target Configuration Settings ................................................................................................. 5-4 Adding Initiators .......................................................................................................................................... 5-6 Displaying VTL Status ............................................................................................................................. 5-8 Backing Up the Appliance Configuration ............................................................................................... 5-9 Restoring Configuration Settings From Backup File .............................................................................. 5-10 Chapter 6 - Configuring Virtual Devices Virtual Device Overview ............................................................................................................................ 6-1 Standalone Disk Devices ........................................................................................................................... 6-1 Creating Standalone Disk Devices ..................................................................................................... 6-1 Modifying Standalone Disk Devices ................................................................................................... 6-2 Setting the SCSI Time-Out Value in Windows Environments ............................................................. 6-3 Standalone Virtual Tape Devices ............................................................................................................. 6-4 Creating Standalone Tape Devices ................................................................................................... 6-4 Dynamic Virtual Tapes .................................................................................................................... 6-4 Virtual Tapes .................................................................................................................................... 6-5 Modifying Standalone Tape Devices ................................................................................................. 6-5 Add iSCSI Initiator Access for Standalone Devices ................................................................................ 6-6 Add FC Initiator Access for Standalone Devices .................................................................................... 6-7 Configuring a Static Route ........................................................................................................................ 6-8 Removing a Route ................................................................................................................................ 6-9 Making a Backup Copy of the Configuration File .................................................................................. 6-9 Restoring Configuration Settings From Backup File ......................................................................... 6-10 Chapter 7 - Working With the Appliance Logging On from Any System with Network Access ............................................................................... 7-1 Logging Off the GUI .............................................................................................................................. 7-1 Establishing Communication Between the Systems ............................................................................... 7-2 Connecting the REO Ports ................................................................................................................... 7-2 Looking at How Dynamic Tape Devices Work ........................................................................................ 7-3 Checking Communication with Other Appliances or Systems ............................................................. 7-3 Refreshing the GUI Display ......................................................................................................................... 7-4 Reviewing How the Disk Drives are Numbered ....................................................................................... 7-4 Understanding What the LEDs Represent ................................................................................................ 7-5 Front Panel LEDs .................................................................................................................................... 7-5 Back Panel LEDs .................................................................................................................................... 7-6 Relocating (Moving) an Appliance ......................................................................................................... 7-7 Chapter 8 - Expanding Capacity Attaching Expansion Arrays ....................................................................................................................... 8-1 Chapter 9 - Hardware Compression Using Compression ..................................................................................................................................... 9-1 GUI Screens Impacted ......................................................................................................................... 9-1 Error Messages ....................................................................................................................................... 9-1 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ vii REO 4600 User Guide Hardware ..................................................................................................................................................... 9-1 Compression Algorithm ........................................................................................................................ 9-2 Appendix A - Basic Troubleshooting Alerts .............................................................................................................................................................A-1 List of Appliance-Specific Alerts ................................................................................................................A-2 List of Generic SNMP Alerts (Traps) ......................................................................................................A-4 Using the Log Files .......................................................................................................................................A-6 Windows Application Event Log Errors .....................................................................................................A-7 Unable to Access the Appliance .............................................................................................................A-7 Appliance Does Not Start Correctly .........................................................................................................A-7 Unable to Log On to the GUI ....................................................................................................................A-8 Internet Explorer Does Not Redirect from IP Address on Windows Server 2003 .............................A-8 Reset Internet Explorer Security Settings .............................................................................................A-8 GUI Stops Responding or Displays a Refresh Error ...................................................................................A-9 Addressing an Unresponsive GUI ........................................................................................................A-9 Addressing a Refresh Error Message ...................................................................................................A-9 Out of Resources Message When Trying to Create a VTL ...................................................................A-11 Unexpectedly Logged Off .......................................................................................................................A-11 Unable to Connect to the Disks via Windows Explorer ........................................................................A-11 Perpetual Loop of Audible Alerts on the Appliance ............................................................................A-12 Disabling the Audible Alarm on the Appliance ....................................................................................A-12 Recover System Page Appears in the GUI ............................................................................................A-13 Troubleshooting a Disk Drive Problem ....................................................................................................A-15 Rebuilding a RAID Volume (Without Hot Spare) .............................................................................A-16 Re-creating a Hot Spare (RAID With Hot Spares) ............................................................................A-17 Purchasing a Spare Disk Drive .................................................................................................................A-17 Impact of a Power Outage .....................................................................................................................A-17 Restoring a Configuration ........................................................................................................................A-17 Appendix B - Specifications Capacities, Requirements and Limits ....................................................................................................... B-1 Electromagnetic Emissions ........................................................................................................................B-3 Notice ..................................................................................................................................................... B-3 Industry Canada ................................................................................................................................... B-3 Industrie Canada .................................................................................................................................. B-3 FCC Notice ............................................................................................................................................ B-3 Japan Voluntary Control Council for Interference (VCCI) .............................................................. B-3 Translation ........................................................................................................................................B-3 Taiwan BSMI Class A Warning .............................................................................................................. B-3 Appendix C - Protection OS Options Design Overview ........................................................................................................................................ C-1 Title Bar .................................................................................................................................................. C-2 Submenu Bar ........................................................................................................................................ C-2 Content Page ...................................................................................................................................... C-2 Create Tab ................................................................................................................................................. C-3 Virtual Tape Library .............................................................................................................................. C-3 Dynamic Virtual Tape .......................................................................................................................... C-5 Virtual Tape ........................................................................................................................................... C-5 Disk ......................................................................................................................................................... C-6 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ viii REO 4600 User Guide iSCSI Initiator Access ............................................................................................................................ C-7 FC Initiator Access ............................................................................................................................... C-8 Manage Tab .............................................................................................................................................. C-9 VTL Summary ........................................................................................................................................ C-9 Capacity Summary ........................................................................................................................ C-9 Resources ........................................................................................................................................ C-9 Current VTL Summary .................................................................................................................. C-10 Standalone Device Summary .......................................................................................................... C-10 Initiator Summary ............................................................................................................................... C-11 FC LUN Map ........................................................................................................................................ C-11 System Tab ................................................................................................................................................ C-12 System Summary ................................................................................................................................ C-13 Disk Management ............................................................................................................................. C-14 RAID Setup .......................................................................................................................................... C-15 Network Configuration ...................................................................................................................... C-16 Default Gateway ......................................................................................................................... C-16 Management Port ....................................................................................................................... C-16 Data Ports One & Two ................................................................................................................. C-16 Static Route Configuration ............................................................................................................... C-17 Route Configuration .................................................................................................................... C-17 Add Route ..................................................................................................................................... C-17 Remove Route .............................................................................................................................. C-18 FC Network Configuration ................................................................................................................ C-18 System Configuration ........................................................................................................................ C-19 System Information ...................................................................................................................... C-20 Logon Information ........................................................................................................................ C-20 E-mail Notification ........................................................................................................................ C-20 SNMP Configuration ..................................................................................................................... C-20 Set Time ............................................................................................................................................... C-21 Setting the Time Manually ........................................................................................................... C-22 Setting the Time by NTP Server ................................................................................................... C-22 Disabling NTP Time Synchronization ........................................................................................... C-22 Maintenance ...................................................................................................................................... C-23 Save/Restore Appliance Configuration .................................................................................... C-23 Shut Down/Restart ....................................................................................................................... C-23 Update System ................................................................................................................................... C-23 System Information ...................................................................................................................... C-24 RAID Controller Firmware Updates ............................................................................................. C-24 Fibre Channel Firmware Updates ............................................................................................... C-24 Update Using Downloaded File ................................................................................................. C-24 Troubleshoot Tab ..................................................................................................................................... C-25 System Diagnostics ............................................................................................................................ C-25 Support Request File .................................................................................................................... C-25 Ping an IP Address ........................................................................................................................ C-25 Contact Us .......................................................................................................................................... C-25 Appendix D - Backup Networks Backup Network Concepts .......................................................................................................................D-1 iSCSI Protocol .........................................................................................................................................D-1 iSCSI Architecture ............................................................................................................................D-1 Fibre Channel (FC) ................................................................................................................................D-1 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ ix REO 4600 User Guide Disk-to-Disk-to-Tape (D2D2TTM) Backup Capabilities ........................................................................D-2 Redundant Array of Independent Disks (RAID) .................................................................................D-5 Tape Emulation .....................................................................................................................................D-6 Virtual Tape Libraries .............................................................................................................................D-6 Appendix E - Initiators and Targets About Initiators and Targets ...................................................................................................................... E-1 iSCSI Naming Conventions .................................................................................................................. E-1 iSCSI-Qualified Names .................................................................................................................... E-1 IEEE iSCSI Names .............................................................................................................................. E-2 How Targets and Initiators are Associated ........................................................................................ E-2 Appendix F - Customer Support Registering Your Product ........................................................................................................................... F-1 Locating Additional Information for Your Product .................................................................................. F-2 Updating the Appliance ............................................................................................................................ F-3 Determining the Version of Your Protection OS Software ................................................................ F-3 Checking For and Downloading Updates ......................................................................................... F-4 Updating the Appliance ...................................................................................................................... F-4 Master Glossary & Acronym List Index 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ x 1 CHAPTER Introduction and Requirements OverviewThe with Overland Protection Storage OS® software REO 4600 delivers disk-based volume backup and device and recovery virtualization, appliance management, (Figure 1-1) and connectivity capabilities, plus offers both iSCSI and Fibre Channel (FC) connectivity features. Figure 1-1: REO 4600 Disk Backup and Recovery Appliance The VTL uses a Web-based interface and can be easily configured as either a virtual tape library (VTL) and/or any mix of standalone virtual tape drives, Dynamic Virtual Tape (DVT) drives, or virtual disks. Using DVT, users can create virtual tape cartridges that automatically expand or shrink as needed to match the exact capacity requirements of the backup operation. The REO 4600 offers optional add-on data compression hardware that provides high performance compression and decompression capabilities for use with any virtual tape device. It provides 2:1 or better compression without sacrificing performance. NOTE: Hardware compression is only available for virtual tape drives; it is not an available option for disk targets. Once the hardware card is installed, compression is enabled and is available for all virtual tape devices on the REO 4600. The also implements in-band host application enable or disable requests, and monitors the compression status for the virtual tape devices. NOTE: Hardware compression settings cannot be changed manually. Reviewing Pre-Installation Requirements Before attempting to operate the REO 4600 with your backup media servers, verify that your network meets the minimum requirements specified in the following sections. 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 1-1 REO 4600 User Guide Introduction and Requirements Network For best results, Overland strongly recommends that you use a dedicated GbE network to share the storage resources on the REO 4600 among multiple backup media servers. To ensure optimum performance, always use the appropriate patch cables to connect the REO 4600 to the backup-server storage network. To select the appropriate cables, use the following guidelines: • If you intend to use GbE, you must use Category 5e (or better) cables for GbE connections. You can use either straight-through or cross-over cables. • If you intend to connect the REO 4600 to a 100BASE-T or faster network, use Category 5 (or better) shielded cables. • The maximum length of cable for any Ethernet-based network connection is 328 feet (100 meters). NOTE: For smaller environments, you can attach the REO 4600 directly to a single application or backup server by using standard Category 5e cables without the use of a switch. Initiators Initiators are required to communicate with the REO 4600 targets (devices). Each backup media server that will interface with the REO 4600 must be equipped with a software- or hardware-based initiator. The REO 4600 supports any computing platform with an available iSCSI initiator, either in software or using an iSCSI HBA (it must comply with iSCSI draft 20, version 1.0). Browser The REO 4600 GUI is a Web-enabled program that requires the use of cookies, Java applets, and JavaScript. Make sure that the Web browser you use is configured to allow these items. 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 1-2

2 CHAPTER Hardware Setup The main steps involved in setting up the REO 4600 include: 1. Activate the warranty coverage. 2. Install the rack rails. 3. Insert the appliance into the rack. 4. Attach the network cables. 5. Attach the appliance to a UPS.

First Things First—Activate Your Warranty! Before installing your new appliance, it is essential that you activate your Overland warranty. Technical and warranty support are not available until this is done: 1. Go to the Overland Technical Support web site at: support.overlandstorage.com/ 2. At the MEMBER LOGIN (Figure 2-1), use your e-mail address and password to log in to the site. NOTE: If you are not yet a member, click “New member?” and follow the instructions. It’s free and easy! Figure 2-1: Login and Sign-up Links 3. At the Support Home page menu on the left, select My Products > Add or Register a Product. 4. Fill in the information and click Submit. IMPORTANT: Within three business days after registering, you will receive an e-mail from Overland with your warranty certificate. Carefully review it and verify that the product and address information is accurate. If any errors are found, e-mail us at: warranty@overlandstorage.com. 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 2-1 REO 4600 User Guide Hardware Setup Installation Preparation CAUTION: Overland strongly recommends that you install the unit in a clean, air-conditioned environment with power conditioning and an adequately rated uninterruptible power supply (UPS). The unit is intended to be grounded. Unpacking the REO Appliance The REO 4600 appliance ships with up to twelve disk drives assembled into carriers and packaged separately. An Accessory Kit is included containing: • Power cords • Rack kit and adaptors • REO 4600 Quick Start Guide • REO 4600 Documentation CD IMPORTANT: Before unpacking the unit, ensure that the area is free from conditions that cause electrostatic discharge (ESD). Discharge static electricity from your body by touching a known grounded surface. Also, avoid touching pins, leads, or circuitry. Installing the Rail Kit Your REO 4600 appliance comes with a set of slide rails for mounting the chassis in the 19-inch rack. The unit has a 2U form factor. Each rail assembly consists of three rail members (Figure 2-2 on page 2-3). The inner member is released from the rail assembly and attached to the appliance. The expandable outer member along with the embedded middle member is mounted onto the rack. The rail kit included with the appliance is adaptable for installation in the three major types of hardware racks: • Squared-holed RETMA rack on page 2-4 • Round-holed RETMA rack on page 2-4 • Round/Threaded-holed RETMA rack on page 2-5 NOTE: The two-post telco-style rack or a rack less than 32-inches in depth will not support the REO 4600 appliance. WARNING: Install multiple units in the rack from the bottom up. Extending a unit that has empty spaces beneath it might cause the rack to tip and cause injury or damage. Overland recommends that two people be used to insert or remove a unit. The rails are not universal. They are stamped LH (left) and RH (right) and must be mounted on the appropriate side (when facing the rack front). 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 2-2 REO 4600 User Guide Hardware Setup Attach the Inner Rails to Chassis This procedure is required for all three types of racks: 1. Fully extend the rails, push the inner member latch down, and remove the inner rail (Figure 2-2). Release and slide the middle member back in. Inner Member Latch Middle Member Latch (Hidden) Outer Member Middle Member Figure 2-2: Inner Rail Release Clip 2. Identify and mark the screw holes on the rack where the sliding outside rails will be installed. NOTE: Be sure rear holes are horizontally in line with the front holes to assure the unit remains level. 3. Attach the right inner rail (Figure 2-3) as follows: Align Rear Holes to Tabs Screw Figure 2-3: Attach Inner Member a. Position the rail against the appliance with the appliance locking tabs going through the holes on the rail b. Slide the rail toward the front to lock it. c. Secure the rail with a screw. 4. Repeat Step 3 to install the left inner member. IMPORTANT: Depending on the type of rack you have, continue with the Square-Holed, Round-Holed, or Round/Threaded-Holed rack installation procedure. 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 2-3 REO 4600 User Guide Hardware Setup Squared-Holed Rack Installation 1. Attach left outer rail to the rack (Figure 2-4) as follows: Tab Figure 2-4: Attaching Front of Rail a. Position the rail against the inside of the rack front rail with the hooks in line with the holes. b. Insert the bracket front into the rack rail and press down so that the hooks catch. The spring-loaded tabs will extend into the hole to prevent the rail from unhooking. c. Slide the rear segment of the bracket rearward until the hooks are in line with the correct holes. d. Insert the bracket rear into the rack rail and press down so that the hooks catch and the tabs lock. 2. Repeat Step 1 for the left slide rail assembly. Continue the installation with “Rack Installation” on page 2-6. Round-Holed Rack Installation (Early Models) If the adapters in your rail kit resemble the illustration Round-Hole Adaptor Hooks to the right, use the following procedure to install the adapters on the outer rails before installing the rails in the rack. NOTE: These earlier adapters cannot be used with threaded-hole racks. 1. Attach the left round-hole adaptor (Figure 2-5) to the outer rail: Figure 2-5: Attach the Early Round-Hole Adaptors 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 2-4 REO 4600 User Guide Hardware Setup a. Position the adaptor stamped “A” at the front of the left outer rail facing inward. NOTE: Make sure the “A” stamp is up and the two square holes on the adaptor are aligned with the hooks on the outer rail. b. Press the adaptor onto the hooks and slide it upwards until it locks (clicks). NOTE: The rail buttons will pop into the square holes. c. Repeat Steps a–b for the rear adaptor (“B”). 2. Facing the rack (Figure 2-6), position the left outer rail on the left side of the rack, aligning the adaptor holes with the front rack holes being used. Figure 2-6: Using the Early Round-Hole Adaptors 3. Using the screws from the kit, secure the front of the outer rail to the rack. 4. Slide the rear segment of the bracket rearward until the hooks are in line with the correct holes. 5. Using the screws from the kit, secure the rear of the outer rail to the rack. 6. Repeat Steps 1–5 for the right outer rail. Continue the installation with “Rack Installation” on page 2-6. Round/Threaded-Holed Rack Installation Use the following procedure to install the adapters on the outer rails for round-holed or threaded-holed racks before installing the rails. 1. Attach the left round-hole adaptor (Figure 2-7) to the outer rail: Round-Hole Adaptor Figure 2-7: Attach the Round-Hole Adaptors a. Position the adaptor stamped “A” at the front of the left outer rail facing outward. 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 2-5 REO 4600 User Guide Hardware Setup NOTE: Make sure the “A” stamp is up and the two square holes on the adaptor are aligned with the hooks on the outer rail. b. Press the adaptor onto the hooks and slide it upwards until it locks (clicks). NOTE: The rail buttons will pop into the square holes. c. Repeat Steps a–b for the rear adaptor (“B”). 2. With you facing the rack (Figure 2-8), position the left outer rail on the front left side of the rack, aligning the adaptor front outside the rack holes being used. Figure 2-8: Using the Round-Hole Adaptors 3. Using a screws and cup washers from the kit, secure the front of the outer rail to the rack. IMPORTANT: If you plan to secure the REO 4600 appliance to the rack (highly recommended), only use one screw and washer now and use the other to secure the appliance after it is installed. 4. Slide the rear segment of the bracket rearward until the outside of the adaptor is outside the rail and the hooks are in line with the correct holes. 5. Using the screws and cup washers from the kit, secure the rear of the outer rail to the rack. 6. Repeat Steps 1–5 for the right outer rail. Continue the installation with “Rack Installation.” Rack Installation Installing the Appliance in the Rack WARNING: It is recommended that a mechanical lifter (or at least two people) be used to prevent injury during rack removal and reinsertion. 1. At the front of the rack, pull out the middle members until they lock (click) in the extended position. 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 2-6 REO 4600 User Guide Hardware Setup 2. Confirm that the ball-bearing shuttle is all the way to the front of the middle member (Figure 2-9).Shuttle Figure 2-9: Inserting Appliance Into Rack 3. Using a mechanical lifter or two people, lift the appliance to its install height and engage the inner members mounted on the appliance with the middle members protruding from the rack, sliding the appliance into the rack until it stops. 4. Slide the appliance in and out several times to ensure that the rail members slide smoothly, the locks engage properly, and the appliance does not bind. If binding occurs, verify that the front and rear flanges are mounted in the correct holes, readjusting the slide positioning as necessary. 5. Using the two screws provided, secure the appliance flanges to the rack. Screws Figure 2-10: Secure the Appliance to Rack Installing Disk Drives The drives come packed separately. Once the appliance is in the rack, install the drives: NOTE: Do not remove the disk drives from their carriers. Doing so voids the drive warranty. 1. Position the drive carrier assembly with the button to the right before you slide it into the chassis. 2. With the lever open, carefully insert the drive assembly until it completely enters the bay. 3. Push the lever back in place to lock it (Figure 2-11). 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 2-7 REO 4600 User Guide Hardware Setup Figure 2-11: Reinserting Drive Carrier 4. Repeat Steps 1–3 for each remaining drive carrier. IMPORTANT: To maintain proper airflow and cooling, either a drive assembly or a blank drive carrier must be installed in every slot. 5. Attach the bezel: a. Insert the left tabs into the holes. b. Push the right side in until it latches (clicks). Attaching Cables All cabling and power connections are located on the rear panel of your REO 4600 appliance (Figure 2-12). Connections are available for Ethernet, USB, and serial cabling. All unit cooling exhaust is handled through the rear panel. 1 2 3 4 5 6 7 8 9 10 11

1 - AC Power Connectors 2 - Mouse Port 3 - Keyboard Port 4 - Dual USB Ports 5 - COM Port 6 - Video Port 7 - Data Port 1 (RJ-45) 8 - Data Port 2 (RJ-45) 9 - Management Port 10 - SAS Port 11 - FC Ports (Opt.) 9 - Management Port 10 - SAS Port 11 - FC Ports (Opt.)

Figure 2-12. REO 4600 Rear Panel Connections Once the unit is secured in the rack and the disk drives installed, you are ready to attach the cables that connect the REO 4600 appliance to your host system and power source. IMPORTANT: You cannot attach peripherals, such as keyboards, mice, and monitors, directly to the rear of the REO 4600 appliance. To communicate with the appliance, use a computer on your network. 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 2-8 REO 4600 User Guide Hardware Setup 1. Plug the network connection into the Data Port 1. Using a Category 5e (or better) cable, connect Data Port 1 on the appliance directly to a network PC or laptop to configure the management port LAN. 2. If a direct data connection is needed, plug the network cable into Data Port 2. (Figure 2-12). 3. Attach the two power cords to the AC Power sockets on the REO back panel, but do not connect the cords to any AC power sources yet. Powering up the unit is covered in the next chapter. Connecting a UPS IMPORTANT: Overland recommends connecting your REO 4600 to an Uninterruptible Power Supply (UPS). NOTE: For more information on using a UPS, refer to “Backup Power” on page 3-4. 1. Make sure the REO 4600 is still powered down. 2. Connect the USB cable from the UPS to the USB port on the REO 4600 back panel. 3. Plug the AC power cords from the REO 4600 into the AC sockets on the UPS 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 2-9

3 CHAPTER Powering Up the Appliance The main steps involved in enabling power to the REO 4600 include:

• Making sure that the disks are correctly inserted in the appliance. • Connecting the power cords to a power source and enabling power. • Shutting down the appliance. • Using an Uninterruptible Power Supply (UPS). Disk Insertion Verification IMPORTANT: The REO 4600 head unit must be fully populated with drives that are all of the same capacity. Also, expansion units must be fully populated with drives that are all of the same capacity. The drives in one unit can be a different capacity than those in other units as long as all the drives in a single unit are the same size. Make sure that the disks are seated correctly to prevent an error state during the power- on procedure. Enabling Power IMPORTANT: Both power cords must be connected. If one of the cords is disconnected or malfunctioning, the appliance beeps continuously until the situation is resolved. Overland recommends that you use separate power mains for the power sources. Power problems can be the cause of serious failures and downtime on your network. Ensure that the power input to your system is clean and free from sags and surges to avoid unforeseen network outages. Overland strongly recommends that you install power conditioning and an adequately rated uninterruptible power supply (UPS), especially in areas prone to blackouts, power dips, and electrical storms. The REO 4600 is intended to be grounded. Ensure it is connected to earth ground during normal use. Power Supplies Each of the two power supply modules contain: • A socket for an AC line cord. • A two-color LED for indicating the status of the power supply. 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 3-1 REO 4600 User Guide Powering Up the Appliance • When all outputs are available, the LED becomes green. • If the power supply fails, the LED becomes red. • A latch for releasing the power supply. • A handle for pulling the power supply out of the appliance. • A pair of fans to prevent overheating. • A feature that verifies the following (if not detected, an alarm signal sounds): • All output voltages V1 to V5 are within regulation. • The fans are operating normally. • The internal temperature of the power supply is normal.

Release Latches LEDs Fans Fans AC Sockets Handles

Figure 3-1: Enabling Power to the Appliance CAUTION: To power on a REO system with an expansion unit, refer to Chapter 8, “Expanding Capacity.” If you do not complete these steps in this order, the appliance might start in an error state. To power up the appliance: 1. Plug the UPS power cord into a separate AC power source and turn the UPS ON. IMPORTANT: If power is automatically enabled when you attach the UPS cord to an AC power source, shut down the appliance by pressing the Power button for one second and then releasing it before continuing with the setup process. 2. To power up the REO 4600, press and hold the Power button for about one second, which starts the power-up sequence. The power switch is located in the lower-left corner of the front panel. The power switch is a momentary contact device that needs to be held no more than one second to begin the power-up sequence. 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 3-2 REO 4600 User Guide Powering Up the Appliance Power Power LED Figure 3-2: Power Button Location After you turn the power on, the REO 4600 performs a power-on self-test (POST) process. Following successful completion of the POST, which takes several minutes, you should hear 3 beep tones spaced about 1 second apart. If you are unable to hear the tones in your physical environment, wait about five minutes before continuing. IMPORTANT: On startup, the appliance might reach an error state and begin an endless loop of alerts. The pattern (2 beeps separated by a 1-second delay) repeats every 4 seconds. If this occurs, turn the appliance off and then back on. For more information, see “Perpetual Loop of Audible Alerts on the Appliance” on page A-12 3. After you hear the POST completion beep tones, proceed to the configuration steps outlined in the next chapter, “Configuring Your Appliance” on page 4-1. IMPORTANT: You must leave the appliance ON while completing the configuration process for your application and backup media servers. Shutting Down the Appliance IMPORTANT: To ensure preservation of data on the REO 4600, you should not turn off the appliance using the Power button. Always use the Shut Down option located in the GUI. NOTE: If you are setting up a new appliance and you did not complete the steps in the proper order or power was automatically enabled, you might not have access to the Shut Down option in the GUI. To shut down the appliance via the GUI: 1. Make sure none of the initiators (servers) have active connections. To determine connection status, check the Initiator Summary page in the GUI. 2. In the GUI, click System > Maintenance. 3. On the Maintenance page, under Shut Down/Restart, click Shut Down. 4. When the confirmation message appears, click OK. 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 3-3 REO 4600 User Guide Powering Up the Appliance To shut down the appliance without GUI access: 1. Press and release the Power button on the front of the appliance quickly (1 second or less) to initiate a graceful software-system shut down process. 2. Wait up to 1-2 minutes to see if the appliance responds. The power LED turns off after the shutdown process is finished. 3. If the appliance does not shut down after the first attempt, repeat Steps 1–2 a second time. CAUTION: Pressing and holding the Power button for 4 seconds or more causes an immediate hardware shut down that might result in the loss of data on the appliance if there are any active read-, write-, or management-operations. Whenever possible, turn off the appliance using the GUI or the graceful shutdown method described earlier. If you must use the immediate hardware shutdown method, make sure that you first stop all host and management server-related activity. Backup Power In order to protect your data from loss due to sudden power interruption, your REO 4600 supports the use of an external UPS. The unit monitors the UPS via the USB port (reporting the charge level on the System Summary page). When the REO 4600 senses a low UPS power condition, it initiates a graceful shutdown that completes before the UPS runs out of battery power. UPS Power Monitoring When the REO appliance detects that it is connected to a UPS, it displays the UPS Information (Figure 3-3) at the bottom of the System Summary page. Figure 3-3: System Summary Page UPS Information • When the REO is receiving power from the main AC source, the indicator bar is green. A complete green bar and 100% indication mean that the UPS battery is fully charged. 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 3-4 REO 4600 User Guide Powering Up the Appliance • When the main AC power is interrupted and the REO is powered by the UPS, the indicator bar turns red (Figure 3-4). The red bar and the numeric indication grow smaller as the UPS battery charge goes down. Figure 3-4: REO Running on UPS Power • When the primary AC power is restored, the indicator bar turns green. The green bar and the numeric indication grow toward 100% as the UPS battery recharges itself. Behavior When Connected to UPS A REO 4600 with a UPS works normally as long as the main AC power is supplied. When the main AC power is interrupted and the REO 4600 detects battery power, it initiates a graceful shutdown in such a way as to be completed before the battery power runs out. Once initiated, the shutdown process continues to completion, even if the AC power has been restored. Upon completion of the shutdown, and when the AC power has been restored, the REO 4600 does not restart automatically. Use the Power button on the front panel to restart the REO 4600. Supported UPS Models UPS support has been verified with the APC Smart-UPS 2200VA. Other UPS devices that connect via the same driver can be found at: networkupstools.org/compat/stable.html 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 3-5

4 CHAPTER Configuring Your Appliance The main steps involved in configuring your REO 4600 management environment are:

1. Entering default gateway and Management Port addresses. 2. Entering the Data Port information. 3. Entering Fibre Channel and system information. 4. Configuring logon information. 5. Configuring alerts. 6. Setting the applicable time information. 7. Connecting the appliance to the backup media servers, either via iSCSI or Fibre Channel. The images shown in the following sections were captured on a Windows system. The screens might appear slightly different if you are using a UNIX-based system. Set Up Network Addressing Before using your REO 4600, you must configure the network communication addresses. The Management Port connects the REO 4600to the Management LAN. A workstation or computer connected to the LAN can then be used to manage the REO 4600. IMPORTANT: The Management Port and both Data Ports must be on a separate subnets. Logging OnWhen setting up your REO 4600, you must initially connect to Data Port 1 and configure the network settings. 1. Directly connect a laptop or other computer to Data Port 1. 2. Configure the NIC in the laptop to be on the 10.0.0.0 network except for 10.0.0.1. 3. Launch a Web browser on the connected laptop. 4. In your Web browser, connect to the default IP address of 10.0.0.1. The Login screen is displayed (Figure 4-2): 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 4-1 REO 4600 User Guide Configuring Your Appliance Figure 4-1: REO 4600 Logon Screen 5. Enter the following in case-sensitive format: • Logon Name: Administrator • Password: system The REO 4600 GUI appears (Figure 4-2). Figure 4-2: REO 4600 Default GUI Screen When you first access the GUI, it displays the System Summary page. The main menu tabs are located at the lower left side of the title bar. Selecting a tab name displays the submenu buttons in the side bar. The content page on the right displays the information that corresponds to the submenu option you click. 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 4-2

Logout Main Menu Tabs Link

Appliance Name Content Page Header Help Link Submenu Buttons (Content Page) REO 4600 User Guide Configuring Your Appliance Entering Configuration Settings for the Management Port CAUTION: The Management Port MUST be configured. The REO 4600 is preconfigured to use Data Port 1 as the initial communication mechanism for your management system. It uses default IP address 10.0.0.1 and subnet mask 225.225.225.0. Connecting the management system initially to Data Port 1 allows for Management Port configuration (Figure 4-3). Figure 4-3: Initial Network Configuration Screen NOTE: You cannot configure the Data Port to which you are currently connected. When you are connected to Data Port 1 via the default IP, you can only configure the Management Port. To configure Data Port 1, you must be connected to the Management Port. 1. With the GUI visible in your browser, verify that the System tab is selected. 2. Click Network Configuration to display the option screen. 3. In the Default Gateway section, enter the address you want to use and click Apply. 4. In the Management Port section, enter the address and subnet mask you want to use and click Apply. NOTE: Only when the Management Port has not yet been established does that section show active Apply, Disable, and Reset buttons. 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 4-3 REO 4600 User Guide Configuring Your Appliance 5. Click the Logout link (Figure 4-4) on the right in the Title Bar. Figure 4-4: Logout Link Location 6. Using a Category 5 (or better) cable, connect the Management Port to a switch or hub on the Management LAN. 7. In a browser on the Management computer, enter the Management Port IP address set in Step 4. 8. Logon to the GUI using the same user name and password. NOTE: If the computer attached to the Management Port is unable to access the GUI, reconnect the laptop and use the 10.0.0.1 address to double-check the information you specified for the Default Gateway and Management Port. Continue the configuration process by configuring the GbE data ports as described in the next section, “Configuring the GbE Data Ports.” Configuring the GbE Data Ports Data Port 1 and Data Port 2 are GbE data ports used for block-level data transport between your backup media servers targets and the REO 4600. Data Port 1 and Data Port 2 are fully interchangeable before configuration. IMPORTANT: The Management Port is on the Management LAN. Use Data Port 1 and Data Port 2 on separate subnets of the backup network. Data Port 1 and Data Port 2 each requires an available static IP address within their respective subnets. The REO can also be managed via either of the data ports. Entering either data port IP address in your browser displays the REO 4600 GUI. The backup media servers must have a GbE port. If you have one or two backup media servers, you can connect each one directly to one of the data ports on the REO 4600. If you have more than two backup media servers, you must make these backup media server connections through a GbE switch. NOTE: You cannot configure the data port to which you are currently connected. When you are connected to Data Port 1 via the default IP, you can only configure the Management Port. To configure Data Port 1, you must be connected to the Management Port. To configure the GbE ports: 1. At the System tab, click Network Configuration. Because you are accessing the GUI through the Management Port, those port options are not changeable. 2. In the Data Port 1 section: 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 4-4 REO 4600 User Guide Configuring Your Appliance a. Enter an appropriate static IP address and subnet mask. b. Click Apply. 3. If applicable, in the Data Port 2 section: a. Click Enable. b. Enter an appropriate static IP address and subnet mask. c. Click Apply. If you purchased the FC-enabled REO 4600, continue the configuration process by entering the FC information described in the next section; otherwise, proceed to the subsequent section, “Entering the System Information” on page 4-6. Configuring FC Data Ports If your REO appliance is set up for FC, configure the FC: 1. At the System tab, click FC Configuration (Figure 4-5). Figure 4-5: FC Configuration Page 2. For each FC port (the appliance provides two), select the applicable settings from the Set Link Speed and Set Link Topology lists. • For link speed, select Auto, 1 GB, 2 GB, or 4 GB. NOTE: Overland Storage recommends that you configure a fixed speed of 1, 2, or 4 GB. 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 4-5 REO 4600 User Guide Configuring Your Appliance • For topology, select Auto, Fabric/Point-to-Point (N_Port), or Loop (NL_Port). 3. If you want to use a specific loop ID (Hard Alpa), check Enable/Disable box and enter the desired number. The following are the valid addresses: 0x01 0x02 0x04 0x08 0x0F 0x10 0x17 0x18 0x1B 0x1D 0x1E 0x1F 0x23 0x25 0x26 0x27 0x29 0x2A 0x2B 0x2C 0x2D 0x2E 0x31 0x32 0x33 0x34 0x35 0x36 0x39 0x3A 0x3C 0x43 0x45 0x46 0x47 0x49 0x4A 0x4B 0x4C 0x4D 0x4E 0x51 0x52 0x53 0x54 0x55 0x56 0x59 0x5A 0x5C 0x63 0x65 0x66 0x67 0x69 0x6A 0x6B 0x6C 0x6D 0x6E 0x71 0x72 0x73 0x74 0x75 0x76 0x79 0x7A 0x7C 0x80 0x81 0x82 0x84 0x88 0x8F 0x90 0x97 0x98 0x9B 0x9D 0x9E 0x9F 0xA3 0xA5 0xA6 0xA7 0xA9 0xAA 0xAB 0xAC 0xAD 0xAE 0xB1 0xB2 0xB3 0xB4 0xB5 0xB6 0xB9 0xBA 0xBC 0xC3 0xC5 0xC6 0xC7 0xC9 0xCA 00xCB 0xCC 0xCD 0xCE 0xD1 0xD2 0xD3 0xD4 0xD5 0xD6 0xD9 0xDA 0xDC 0xE0 0xE1 0xE2 0xE4 0xE8 0xEF 4. Click Apply. Continue with “Entering the System Information,” next. Entering the System Information The System Configuration page under the System tab provides one place to set the System Name and Logon credentials. It also enables overall e-mail notification or SNMP notification concerning events and alerts. 1. At the System tab, click System Configuration (Figure 4-6). 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 4-6 REO 4600 User Guide Configuring Your Appliance Figure 4-6: Initial System Configuration Page 2. In the System Information section, enter the System Name you want (the default is “REO”) and click Apply. Enter up to 16 characters using a mixture of letters, numbers, and hyphens (–). Overland recommends that you change the default name, especially if you use multiple appliances on your network. 3. In the Logon Information section, enter user name and password credentials: IMPORTANT: If you choose to keep Administrator as your user name, Overland strongly recommends that you change the password to protect your network from unauthorized users. The user name and password are case-sensitive. a. User Name (required). Enter a name using up to 30 alphanumeric characters (do not use colons or spaces). The first character of the name must be either an upper (A–Z) or lowercase (a–z) alphabetical character. b. Password (optional, but strongly recommended). Enter a new password using up to 30 alphanumeric characters (do not use spaces or Ctrl-key characters). c. Retype Password. Enter the password again. d. Click Apply. 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 4-7 REO 4600 User Guide Configuring Your Appliance 4. In the E-mail Notification section, click Enable to display the configuration options (Figure 4-7) and enter the following: Figure 4-7: Initial System Configuration Page with E-mail Enabled a. SMTP Server IP Address. Using dotted decimal notation, enter the IP address of your mail server. b. From Address. Enter the e-mail address from which the alert will be sent. This address must use the same domain as the mail server specified for SMTP Server IP Address. c. Address for all messages. Enter the e-mail address to which alerts should be sent (for example, the e-mail address for the network administrator or the e-mail list address for a group of backup administrators). d. Address for critical messages only. Enter the e-mail address to which only critical alerts should be sent. e. To verify that the messaging system is configured correctly, click Test. If the test e-mail message is not successfully sent and received, correct the applicable information, and repeat the test. If the test is unsuccessful, make sure that you are using a valid SMTP Server IP address, and that the address is working properly. f. Click Apply. 5. If you use network-management software that takes advantage of SNMP, in the SNMP Configuration section, click Enable to view the entries (Figure 4-8): 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 4-8 REO 4600 User Guide Configuring Your Appliance Figure 4-8: Configuring SNMP a. Read-Only Community String. Enter the name of the string (the default is public). You can enter up to 256 alphanumeric characters. IMPORTANT: Because public is the default string for a large number of network appliances, Overland strongly recommends that you change it. b. Trap IP Address. Using dotted decimal notation, enter up to four IP addresses that function as destinations. c. Click Apply. d. To verify that the system is configured correctly, click Test Trap. e. To download the MIB file for this SNMP configuration, press Download MIB. The compressed, downloaded file mibs.tgz contains the required SNMP MIB for receiving traps. Place this file in a secure location. NOTE: The file must be saved with a TGZ extension. Setting the Local Time Under the Set Time section (Figure 4-9), you can either set the time manually or connect to a Network Time Protocol (NTP) server to manage the time for you. 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 4-9 REO 4600 User Guide Configuring Your Appliance Figure 4-9: Set Time With NTP Disabled 1. Using the drop-down list, select the appropriate local Time Zone and click Apply just below the list. IMPORTANT: Set the Time Zone first. This establishes the correct time for the appliance whether the time is set here, or via NTP server. The REO 4600 defaults to the UTC (formerly Greenwich Mean Time) time zone. If you are in a different time zone, you must set the time zone for accurate local time. This ensures that any communication that occurs (for example, if an E-mail is automatically generated) reflects the correct date and time for the appliance. For more information on setting the time, see “Set Time” on page C-21. 2. Set the time on the current appliance: • To manually set time on this appliance: In the Current Date and Time section, select the appropriate current time settings and click Apply. • To set time via NTP server: Set the correct local time, then enter the IP address of the NTP server on your network, and click Enable NTP. The Current Date and Time section displays only the current date and time with no options (Figure 4-10). Figure 4-10: Set Time With NTP Enabled 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 4-10 REO 4600 User Guide Configuring Your Appliance NOTE: To disable NTP server time: Click Disable NTP. The Current Date and Time section re-displays the date and time options and the Current Network Time section returns to its original state. RAID Setup The REO 4600 ships configured as a RAID 6 with Hot Spare but also supports the basic RAID 5, RAID 5 with Hot Spare, and RAID 6 configurations. RAID 6 offers two parity blocks distributed across all disks and provides protection against data loss during an array rebuild, when a second drive is lost, a bad block read is encountered, or when a human operator accidentally removes and replaces the wrong disk drive when replacing a failed drive. You can use the RAID Setup feature under the System tab to select a different RAID configuration. CAUTION: When you click Submit, all existing data is deleted during the RAID setup process. It also takes several minutes to set up a new RAID configuration. It is recommend that the process be run overnight. If you do not want to proceed with changes to the RAID configuration, cancel this operation. RAID Setup with One or More Expansion Units When you request the RAID Setup function on a REO head unit with one or more expansion units connected, the process cleans up and deletes all connected RAID Sets but only the head unit recreates its RAID Sets. The RAID Sets for each expansion appliance must be added manually. See Chapter 8, “Expanding Capacity.” 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 4-11

5 CHAPTER Virtual Tape Library Setup The key feature of the REO 4600 is its ability to emulate a physical type library so your existing backup software can easily manage the REO appliance, track and move virtual tape cartridges, and maintain retention policies.

The main steps involved in creating a Virtual Tape Library (VTL) include: • Adding a virtual tape library and drive type that you want to emulate. • Setting the target information. • Identifying the initiator targets. • Making a backup copy of your configuration. • Determining the type of RAID Set you want to use. NOTE: Up to six (6) VTLs can be created on each REO appliance running Protection OS version 6.0.x. Adding a VTL 1. Click the Create tab. The default screen is the Create Virtual Tape Library screen (Figure 5-1). Figure 5-1: Create Virtual Tape Library Screen 2. Make the necessary changes to the fields as follows: a. In the Descriptive Name section, do one of the following: 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 5-1 REO 4600 User Guide Virtual Tape Library Setup • Leave the Automatic check box selected to have the Protection OS software specify the name of the VTL. It uses the prefix “vl” followed by a number, beginning with 0, for example, “vl0” for the first VTL. • To use your own naming convention, clear the check box, in the text box that appears to the right of the check box (Figure 5-2), type a name using up to 32 alphanumeric characters. Figure 5-2: Descriptive Name Text Box b. If desired, select the Emulation Template you want to use as the default settings for the new VTL. The template that you select changes the default number in the Drive Count and Cartridge/slot Count fields. You can manually change any of the default settings. • Select NEO 2000 to create one (1) drive and 30 cartridges (default). • Select NEO 4100 to create two (2) drives and 60 cartridges. • Select NEO 4200 to create four (4) drives and 120 cartridges. c. In the Drive Type section, select the type of drive to emulate. The drive type you select determines the default DVT Capacity Limit: • Select LTO-2 to create drives with DVT Capacity Limit of 200GB. • Select LTO-3 to create drives with DVT Capacity Limit of 400GB (default). • Select LTO-4 to create drives with DVT Capacity Limit of 800GB. d. In the Bar Code Seed section, do one of the following: IMPORTANT: The bar code seed text cannot be changed once the VTL is created. Verify your selections before clicking Create. • Leave the Automatic check box selected to have the Protection OS software specify the first bar code label and automatically generate subsequent labels. • To use your own naming convention, clear the check box and, in the text box that appears to the right of the check box (Figure 5-3), type the seed code using six alphanumeric characters. Lowercase letters are converted to uppercase when the VTL is created. Figure 5-3: Bar Code Seed Text Box The sequencing of the codes begins with the last character listed. For example, if you manually entered a seed of AAAAAA, the next code is AAAAAB. When the code reaches AAAAAZ, it rolls the second to the last character and starts over (AAAABA, AAAABB, and so on). If you manually entered a seed of 111111, the next number would automatically be 111112. 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 5-2 REO 4600 User Guide Virtual Tape Library Setup IMPORTANT: If you plan to create VTLs on multiple appliances and associate them with the same media-management database in your backup software, make sure to clear the Automatic check box, and manually enter a starting label that ensures the creation of a unique labeling scheme for the VTL. For example, you might use SVA000 as the seed for a VTL on REO appliance A, SVB000 for a VTL on REO appliance B, SVC000 for a VTL on REO appliance C, and so on. (The automatic option uses the same labeling scheme for all VTLs on each REO appliance, which results in the same set of labels being reported for each VTL to your backup software. e. Still in the Bar Code Seed section, from the Characters list, select the applicable number of bar code characters (6 or 8) to display to your backup application. If you select 8 characters, the system automatically appends two characters to the label to indicate the drive type selection: f. In the Drive Count field, if you want to change the default number of virtual tape-drives allocated for the VTL, enter the new number in the text box. g. In the Cartridge/Slot Count box, if you want to change the default number of virtual tape cartridges (and corresponding slots) allocated for the VTL, enter the new number in the text box. The Protection OS automatically creates a Dynamic Virtual Tape device for each cartridge. h. Enter the DVT Capacity Limit for each cartridge. The default value is 400 GB, the same capacity as an LTO-3 cartridge. If you change the Drive Type, the DVT Capacity Limit default changes to match. IMPORTANT: Making this value too large will over-subscribe the REO appliance, which means the VTL could exhaust the available space of the appliance even though the VTL has remaining capacity. Consider dividing the total remaining capacity by the number of cartridges in your new VTL to determine an appropriate DVT capacity limit. NOTE: After you click Create, you can only increase the number of drives and cartridges assigned to the VTL. To decrease either setting, the current VTL must be deleted and a new one created. 3. Click Create. A progress message appears regarding the time required for a REO appliance to create the VTL. When the new VTL is created, the VTL Summary screen (Manage tab) is displayed (Figure 5-4). Table 5-1: Bar Code Drive Characters Drive Type Characters Appended LTO-2 L2 LTO-3 L3 LTO-4 L4 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 5-3 REO 4600 User Guide Virtual Tape Library Setup Figure 5-4: Current VTL Summary screen Listing New VTLs Modifying Target Configuration Settings To view or change the VTL configuration: 1. Under the Manage tab, click VTL Summary. 2. For the appropriate VTL under the Target Configuration heading, click Modify to view the Modify Target Configuration screen (Figure 5-5 on page 5-5). IMPORTANT: The default SCSI Product ID automatically identifies the VTL as a NEO Series device. Do not change this setting unless your backup software requires a different setting. 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 5-4 REO 4600 User Guide Virtual Tape Library Setup Figure 5-5: Modify Target Configuration Screen NOTE: If your REO does not support Fibre Channel, the FC LUN column displays “n/a”. 3. If necessary, make any changes to the VTL Settings: • DVT Capacity Limit • Drive Count • Cartridge/Slot Count • Descriptive Name • Bar Code String Width NOTE: The bar code seed cannot be changed once the VTL is created. 4. To change the default target name of a device, type the new name in the iSCSI Target Name box. All targets must have an iSCSI name. The REO software automatically enters a name that begins with the name of the VTL and includes the MAC address of the device. 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 5-5 REO 4600 User Guide Virtual Tape Library Setup 5. Before clicking Commit, note the following if you need this information for your backup software: • Device Name. Displays the name of the device automatically assigned by the software. • FC LUN. Displays the Fibre Channel (FC) logical unit number (LUN) automatically assigned to the device by the software. • SCSI SN. Displays the Small Computer System Interface (SCSI) serial number (SN) automatically assigned to the device by the software. 6. Click Commit. The VTL Summary screen is redisplayed. You can now add the initiator access to the VTL by completing the steps outlined in the next section, “Adding Initiators.” Adding Initiators Now that you created a VTL, you can assign initiator access to it. Initiator access to the devices (targets) is established via the initiators. You can assign up to 16 initiators to each VTL device. Standalone devices must first exist before you can assign an initiator to them. IMPORTANT: Due to iSCSI’s limitations with device sharing, plan your storage system configuration such that there is one iSCSI initiator to a disk device. If your configuration requires multiple iSCSI initiator connections to one device, then sharing software is required to avoid data corruption and connection loss. To add an Initiator to a VTL: 1. Under the Manage tab, select VTL Summary (Figure 5-6). Figure 5-6: VTL Summary with Initiator Configuration Highlighted 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 5-6 REO 4600 User Guide Virtual Tape Library Setup 2. For the appropriate VTL, under the Initiator Configuration heading, click Modify to view the Initiator Configuration screen (Figure 5-7). Figure 5-7: Modify Initiator Configuration Screen 3. Click Add Initiator (top left) to view the Add Initiator screen (Figure 5-8). Figure 5-8: Add Initiator Screen with iSCSI Selected (default) 4. In the Select Connection Type field, click either iSCSI or FC. 5. Select an initiator using one of these methods: • From the Initiator Names drop-down list, select an existing initiator. NOTE: If there is only one name in the Initiator Names list and you are using the Internet Explorer browser on a Windows 2000 system to select it, you may need to select the name a second time before it will automatically complete the name and address fields. • In the iSCSI Initiator Name field, enter a unique name (up to 223 alphanumeric characters) of an authorized target initiator. 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 5-7 REO 4600 User Guide Virtual Tape Library Setup NOTE: The fully qualified iSCSI name is assigned by the manufacturer of either the software initiator or the storage adapter on your backup server. The iSCSI initiator name entered here must match the name of the iSCSI initiator on the associated backup server. If the maximum number of initiators has already been defined for a VTL device, the iSCSI Initiator Name field is greyed out. You can only add an initiator by using the drop-down Initiator Names list. • For an FC initiator (Figure 5-9), in the FC Initiator WWNN and WWPN boxes, enter the official node and port names of the authorized initiator (host system). Figure 5-9: Add Initiator Screen with FC Selected NOTE: You can retrieve the initiator WWNN and WWPN by using the specific FC host adapter management software utility or by querying the name server on the FC switch. 6. In the Select Devices for this Initiator section, if you do not want the initiator to access all devices, select the applicable device from the list. 7. Click Commit to create the initiator. 8. If you want to add another initiator, repeat Steps 3–7. Displaying VTL Status To view the status of the VTL: 1. Under the Manage tab, select VTL Summary. 2. For the appropriate VTL, under the Display heading, click Status to view the status information (Figure 5-10). 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 5-8 REO 4600 User Guide Virtual Tape Library Setup Figure 5-10: VTL Status Display NOTE: If your device does not support Fibre Channel, n/a is displayed in the FC LUN column. 3. Click Return To VTL Summary at the bottom of the screen when done. Backing Up the Appliance Configuration The REO appliance includes a feature that saves all configuration-related information, such as virtual libraries, devices, and host-system information, to a location specified by you. (It does not save system or network information.) After you have completed tasks such as creating targets and initiators, Overland strongly recommends that you create backup copies of the basic appliance configuration. Overland also recommends that you complete these steps whenever you add a new library or tape device or change configuration settings. 1. From the System tab, click Maintenance. 2. Under Save/Restore Appliance Configuration, click Save. 3. At the confirmation message, click OK. 4. At the success message, click Continue. 5. At the standard file save window, select either Open or Save, and click OK. Depending on your browser settings, you may have to select a location to save the CFG file. 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 5-9 REO 4600 User Guide Virtual Tape Library Setup Restoring Configuration Settings From Backup File If it ever becomes necessary, you can use the Restore option to reset the to a previously configured state. Using this option recreates configuration-related information, such as virtual libraries, devices, and initiators (it does not restore system or network information). IMPORTANT: Invoking the Restore feature only restores the REO appliance’s configuration; it does not restore backup data. All existing data and devices are deleted during restore. For the restore process, refer to “Restoring a Configuration” on page A-17. 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 5-10

6 CHAPTER Configuring Virtual Devices Using the Protection OS software, you can configure disks on a REO appliance to function either as standalone disk devices or as virtual tape devices.

The main steps involved in setting up virtual devices on your REO appliance are: 1. Understanding the types of disk and tape virtual devices. 2. Configuring appropriate devices for your applications. 3. Making a backup copy of the information so that your configuration is preserved. Virtual Device Overview The Protection OS software pools all the REO disks of each RAID together to create devices of any size. This way, you can use each device either in its native disk format, a virtual-tape format, or any combination of the two. You can create up to a total of 64 devices using any combination of disk LUNs and virtual tape devices. NOTE: If you allocate all available space on the appliances to the devices, the system automatically sends one critical-level alert regarding the storage pool. If you restart the appliance, the system automatically sends the message again. Standalone Disk Devices At any time, unused disk space can be configured as an independent virtual disk device. This device can fill all available space on the REO appliance. For example, after all VTLs are set up, any extra disk space can be configured as a standalone disk for extra storage. This standalone disk can be as large as 16 TB. NOTE: Support is available for disk devices that are greater than 2 TB (up to 16 TB). Creating Standalone Disk Devices 1. Under the Create tab, click Disk (Figure 6-1). 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 6-1 REO 4600 User Guide Configuring Virtual Devices Figure 6-1: Create Disk Screen 2. Accept the default size or enter a new Size of Device. 3. Accept the default name or enter a new iSCSI Target Name. 4. Click Create. The Standalone Device Summary screen is displayed showing the new target disk. Modifying Standalone Disk Devices NOTE: Disk devices can only be expanded in size. To make a smaller device, the old device must first be deleted and then recreated using the smaller size setting. 1. If necessary, under the Manage tab, click Standalone Device Summary (Figure 6-2). Figure 6-2: Standalone Device Summary Screen 2. To change the iSCSI target name: a. Click Modify. b. Enter a new iSCSI target name. c. Click Apply. d. At the message about shutting down initiators, click OK. The Standalone Device Summary screen is redisplayed. 3. To expand the disk size: a. Click Expand. 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 6-2 REO 4600 User Guide Configuring Virtual Devices b. In the Expand Device By field, enter the number of additional gigabytes you are adding to the existing size. c. Click Expand. d. At the message about shutting down initiators, click OK. The Standalone Device Summary screen is redisplayed. 4. To remove a disk device: a. Click Remove. b. At the warning message (Figure 6-3), click OK (or Cancel). Figure 6-3: Disk Removal Warning Message The Standalone Device Summary screen is redisplayed. Setting the SCSI Time-Out Value in Windows Environments If you intend to use your REO 4600 in a Windows environment, be aware that there are certain operating conditions in which disk time-out errors might occur. These errors usually result in the system reporting a disk failure for the associated REO 4600 disk drive or drives. NOTE: These disk time-out errors can occur because the default I/O time-out value for Windows is 20 seconds, which is not sufficient to support the default iSCSI protocol time-out value of 60 seconds. When you install and set up your REO 4600, we strongly recommend that you set this value to 60 seconds. These errors might be reported as “iSCSIPrt” errors in the System Log of the Event Viewer. Examples include an Event ID 9, “Target did not respond in time for a SCSI request,” and Event ID 39, “Initiator sent a task management command to reset the target.” Other symptoms might include “Lost Delayed Write Data” system error messages or similar error messages related to the REO 4600 disk drives. To set the time-out value to 60 seconds: 1. On the Windows system, run regedit. CAUTION: If you edit the registry incorrectly, you might cause serious problems that require you to reinstall your operating system. Edit the registry at your own risk. Prior to making any changes, refer to the following Microsoft Knowledge Base article: support.microsoft.com/default.aspx?scid=kb;en-us;322755 2. In HKEY_LOCAL_MACHINE\System\CurrentControlSet\ Services\Disk, edit or add the TimeOutValue entry (Figure 6-4) to set it to 60 seconds in decimal format (0000003c in hexadecimal). • To edit the value for the TimeOutValue entry if it already exists, double-click the entry, enter the new value, and click OK. 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 6-3 REO 4600 User Guide Configuring Virtual Devices • To add the TimeOutValue entry if it does not yet exist, right-click anywhere in the list of values, and then click New > DWORD value. Name the new value TimeOutValue, and then double-click it to edit the setting. Figure 6-4: Registry Editor with TimeOutValue Added Standalone Virtual Tape Devices If you intend to create virtual tape or dynamic virtual tape devices, note the following: • As with standard tape devices, a specific driver (on a Windows system) or changes to a system configuration (on a UNIX system) might be required to operate with your selected backup software. For more information, check the Overland Web site ( overlandstorage.com) for Application Notes related to your specific backup software. • Once a tape virtual device is configured, it cannot be changed into a virtual disk device. Creating Standalone Tape Devices You can create either variable-size dynamic virtual tapes or fixed-sized virtual tapes. Dynamic Virtual Tapes 1. Under the Create tab, click Dynamic Virtual Tape (Figure 6-5). Figure 6-5: Create Dynamic Virtual Tape Screen 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 6-4 REO 4600 User Guide Configuring Virtual Devices 2. Select the Drive Type to emulate from the Drive Type drop-down list: LTO-2, LTO-3, or LTO-4. 3. Accept the default or enter a new Dynamic Tape Maximum Size. NOTE: Leave the setting at “0” GB to allow it to use up to 2047 GB (maximum) or all available space, which ever is smaller. 4. Accept the default or enter a new iSCSI Target Name. 5. Click Create. The Standalone Device Summary screen is displayed. Virtual Tapes 1. Under the Create tab, click Virtual Tape (Figure 6-6). Figure 6-6: Create Dynamic Virtual Tape Screen 2. Select the Drive Type to emulate from the Drive Type drop-down list: LTO-2, LTO-3, or LTO-4. 3. Accept the default or enter a new Size of Device. 4. Accept the default or enter a new iSCSI Target Name. 5. Click Create. The Standalone Device Summary screen is displayed. Modifying Standalone Tape Devices NOTE: Tape devices can only be expanded in size. To make a smaller device, the old device must first be deleted and then recreated using the smaller size setting. 1. If necessary, under the Manage tab, click Standalone Device Summary (Figure 6-7). 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 6-5 REO 4600 User Guide Configuring Virtual Devices Figure 6-7: Standalone Device Summary Screen 2. To change the iSCSI target name: a. Click Modify. b. Enter a new iSCSI target name. c. Click Apply. d. At the message about shutting down initiators, click OK. The Standalone Device Summary screen is redisplayed. 3. To expand the size of a fixed-sized virtual tape: NOTE: Since a DVT uses dynamic sizing, it expands (and contracts) its size automatically. a. Click Expand. b. In the Expand Device By field, enter the number of additional gigabytes you are adding to the existing size. c. Click Expand. d. At the message about shutting down initiators, click OK. The Standalone Device Summary screen is redisplayed. 4. To remove a virtual tape device: a. Click Remove. b. At the warning message, click OK (or Cancel). The Standalone Device Summary screen is redisplayed. Add iSCSI Initiator Access for Standalone Devices To be able to use a REO virtual device, it must first be connected to an initiator. 1. Under the Create tab, click iSCSI Initiator Access (Figure 6-8). 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 6-6 REO 4600 User Guide Configuring Virtual Devices Figure 6-8: Standalone Device Add iSCSI Initiator Screen 2. In the iSCSI Initiator Name field, enter a unique name (up to 223 alphanumeric characters) of an authorized initiator for the target. NOTE: The fully qualified iSCSI name is assigned by the manufacturer of either the software initiator or the storage adapter on your backup server. The iSCSI initiator name entered here must match the name of the iSCSI initiator on the associated backup server. If the maximum number of standalone initiators has already been defined for a device, the iSCSI Initiator Name field is greyed out. You can only add an initiator by using the drop-down Initiator Names list. 3. In the Device Name List section, select one or more applicable devices from the list. 4. Click Create to create access for the initiator. The Add iSCSI Initiator Access for Standalone Devices screen is reset and redisplayed. 5. If you want to add access for more iSCSI initiators, repeat Steps 1–4. Add FC Initiator Access for Standalone Devices For appliances running Fibre Channel, use the following procedure to add FC initiator access. 1. Under the Create tab, click FC Initiator Access (Figure ). 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 6-7 REO 4600 User Guide Configuring Virtual Devices Figure 6-9: Standalone Device Add FC Initiator Screen 2. In the FC Initiator WWNN and WWPN boxes, enter the official node and port names of the authorized initiator (host system). NOTE: You can retrieve the initiator WWNN and WWPN by using the specific FC host adapter management software utility or by querying the name server on the FC switch. 3. In the Device Name List section, select one or more applicable devices from the list. 4. Click Create to create access for the initiator. The Add FC Initiator Access for Standalone Devices screen is reset and redisplayed. 5. If you want to add access for another FC initiator, repeat Steps 1–4. Configuring a Static Route A static route is a network path that is dedicated to a specific port and destination: it does not change. You can configure up to four static routes. NOTE: The addresses used to specify the route must exist prior to establishing the route. To establish a static route for the appliances: 1. Enter the IP address of the network destination in the Network Destination field. The network destination is the port on the remote appliance that the central appliance uses for communication. 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 6-8 REO 4600 User Guide Configuring Virtual Devices Figure 6-10: Adding a Route on the Static Route Configuration Page 2. Enter the subnet mask value associated with this route entry in the Subnet Mask field (such as 255.255.255.0) 3. Enter the IP address of the gateway associated with the route entry in the Gateway field. 4. Click Add to add this route. 5. At the two confirmation messages that appear, click OK. Removing a Route To remove a single route, select the route and click Remove. To remove all of the routes, click Remove All. Click OK when the confirmation messages appear to remove the route or routes from the list. Making a Backup Copy of the Configuration File IMPORTANT: Overland recommends that you copy the configuration settings for each of your REO appliances immediately after you have configured it and store it in a file on your local network computer for future use. 1. At the System tab, click Maintenance (Figure 6-11). Figure 6-11: System Maintenance Page 2. In the Save/Restore Appliance Configuration section, click Save. 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 6-9 REO 4600 User Guide Configuring Virtual Devices NOTE: The settings you are about to save include all configuration-related information, such as virtual libraries, devices, and initiators (they do not include system or network information). 3. A message (Figure 6-12) is displayed alerting you to the time it will take to back up the files. Click OK to continue (or Cancel). Figure 6-12: Backup Time Message 4. A second message (Figure 6-13) is displayed showing the name of the backup file. Click Continue. Figure 6-13: Popup Dialog with Configuration Filename NOTE: You may consider changing the name of this file later to something more descriptive that makes the file easier to identify. 5. At final message, browse to the location on your local computer where you want to save the file and click Save. The configuration settings for your REO appliance have been saved to a CFG file in the location specified. Restoring Configuration Settings From Backup File If it ever becomes necessary, you can use the Restore option to reset the REO 4600 to a previously configured state. Using this option re-creates configuration-related information, such as virtual libraries, devices, and initiators (it does not restore system or network information). IMPORTANT: Invoking the Restore feature only restores the REO appliance’s configuration; it does not restore backup data. All existing data and devices are deleted during restore. For the restore process, refer to “Restoring a Configuration” on page A-17. 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 6-10

7 CHAPTER Working With the Appliance This chapter provides a few tips on working with the appliance including:

• Logging on to the Web interface. • Establish communication with the backup media servers. • Looking at how dynamic tape devices work. • Checking communication with other systems or appliances. • Refreshing the REO 4600 GUI. • Reviewing how disk drives are numbered. • Moving an appliance. Logging On from Any System with Network Access After you have completed configuration of the appliance, you can access the REO 4600 GUI from any system that has network access to the IP address of the Management Port. Be aware of the following: • If you log on from one system and then log on from another system, the REO 4600 GUI automatically logs you off from the first system. • After an hour of inactivity, the REO 4600 GUI automatically logs you off the system. • If another user logs on to the REO 4600 GUI, you are automatically logged off. To log into the GUI from a remote system with network access: 1. In your Web browser, type the IP address assigned to the Management Port for the REO. Tip: You can also use the IP addresses assigned to the Data Ports. 2. When the prompt appears, type your user name and password (the defaults are “Administrator” and “system”) in case-sensitive format. The REO 4600 GUI is displayed. IMPORTANT: Overland recommends you change both the user name and password. Logging Off the GUI To log off the REO 4600 GUI, click Logout in the upper right corner. 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 7-1 REO 4600 User Guide Working With the Appliance Establishing Communication Between the Systems Once the basic network connections are configured, you are ready to set up the lines of communication between the REO 4600 and the backup media servers. Connecting the REO Ports If you are using iSCSI connectivity, iSCSI initiators are required on each backup media server being connected so it can communicate with the iSCSI targets (devices) on the REO 4600. Similarly, FC initiators are required for FC connectivity. Use the following information to connect the REO 4600 to your backup media servers or SAN (Figure 7-1). 0 1 1 2 Data Ports Management Port FC Ports Figure 7-1: Data, Management, and FC Ports NOTE: You do not need TOE-equipped (TCP Offload Engine) or special iSCSI-capable GbE HBAs to work with software initiators. Any standard Network Interface Card (NIC) can serve as an iSCSI network interface device; however, Overland strongly recommends that you use GbE for enhanced performance. 1. Determine the type of connection to be used: • For iSCSI connectivity: • Connect Data Port 1 (left) directly to a backup media server. • For additional connectivity, connect Data Port 2 (right) directly to a REO appliance VTL or NEO PTL. • If connecting to multiple backup media servers, use a GbE switch connected to either REO data port. • For FC connectivity: • Connect FC Port 0 (left) directly to a backup server or to your FC switch or hub. • For additional connectivity, connect FC Port 1 (right) directly to a REO appliance VTL or NEO PTL or to your FC switch or hub. 2. Install the desired software initiator or storage adapter on the backup media server. If you are using iSCSI connectivity, use either a software initiator (such as the Microsoft iSCSI Software Initiator) or an IP storage HBA, (such as the QLogic 4050C). If you are using FC connectivity, make sure that the applicable FC initiator is installed. NOTE: For detailed information on various drivers and adapters or for assistance on assigning targets (REO 4600 devices), see the manufacturer’s documentation. You can also check the Overland Web site ( overlandstorage.com) for Application Notes on initiators. 3. For additional backup systems connecting with the REO appliance, repeat Step 2. 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 7-2 REO 4600 User Guide Working With the Appliance Looking at How Dynamic Tape Devices Work As explained previously, Dynamic Tape devices contract and expand to accommodate the size of a specific backup job. When your backup software starts a job, it mounts the Dynamic Tape device as if it were a physical tape, and then begins the backup process by launching a Write operation. During this process, if the tape position in the backup software corresponds to a logical-block address (LBA) that is less than 3, the software treats the device as though it were overwriting a tape, and the REO 4600 reduces the capacity of the device to 1 GB. The appliance then releases the unused storage back into a virtual storage-pool (VSP). When the backup software reaches an early warning (EW) state (EW is reached when less than 100 MB of space remains on the current device), the REO 4600 reviews the following to determine whether it can expand the size of the device: • It determines how much space is already consumed. • If the current consumption exceeds 70 percent of the VSP, the appliance sends a “warning” message to the e-mail and SNMP addresses you specified for alerts. • If the current consumption exceeds 90 percent of the VSP, the appliance sends a “critical” message to the e-mail and SNMP addresses you specified for alerts. • It determines whether you specified a maximum size for the device. • If you did not (that is, if you used the default entry of 0 which lets the appliance use up to 2047 GB of the VSP), the appliance attempts to expand the size of the tape in 10 GB increments until the maximum of 2047 GB is reached. • If you specified a maximum size, the appliance determines whether expanding the size of the tape by 10 GB would exceed the specified capacity. • If the expansion would not exceed the limit, the appliance increases the size of the tape by 10 GB. If the expansion is successful, an EW is not reported to the backup software. If the expansion is unsuccessful, the EW is relayed to the backup software. • If the expansion would exceed the limit, the appliance increases the size of the tape by the remaining space. If the expansion is successful, an EW is not reported to the backup software. If the expansion is unsuccessful, the EW is relayed to the backup software. Checking Communication with Other Appliances or SystemsThe Maintenance Diagnostics page includes a section that lets you check network connectivity with any system, appliance, and so on, that has an IP address. The REO 4600 GUI uses a ping command to perform this check. To check communication with another appliance or system: 1. Under Troubleshoot tab, click System Diagnostics (Figure 7-2). 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 7-3 REO 4600 User Guide Working With the Appliance Figure 7-2: Troubleshoot System Diagnostics Screen 2. In the Ping an IP Address section, type the IP address of the system that you want to check in the blank field, and click Ping IP. The GUI displays a message that indicates whether the ping command succeeded or failed. 3. To proceed, click Continue. Refreshing the GUI Display The REO 4600 GUI does not refresh the display automatically. To view updated information, click the applicable menu command again to refresh the screen. IMPORTANT: Do NOT use the Refresh button in your Web browser to update the GUI page. Reviewing How the Disk Drives are Numbered Physical numbering (Figure 7-3) begins with the disk in the upper-left corner (disk 00) and moves from left to right, top to bottom (12 drives total). Figure 7-3: Physical Disk Drive Numbering The GUI disk numbering style (Figure 7-4) is slightly different. It starts by numbering the drive in the upper-left corner as number “1” and then proceeds the same way as the physical numbering but without the leading zeros. Figure 7-4: GUI Disk Drive Numbering 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 7-4

000408 010509 020610 020610 030711 030711 030711

REO 4600 User Guide Working With the Appliance Understanding What the LEDs Represent The REO appliance uses numerous LED lights for information and as alerts. Front Panel LEDs The front of the appliance includes several LED lights (Figure 7-5). If an LED for a port (network connection) is blinking, it indicates that the port is in use. The LED that represents power indicates whether power is enabled. Power Button Reset Access Power NIC 2 Activity Power Fail Figure 7-5: Front Panel LEDs Each disk drive (Figure 7-6) has two LEDs: an upper blue LED for activity and a lower red LED for either failure (solid) or Hot Spare health (blinking). Figure 7-6: Disk Drive LED HDD Activity NIC 1 Activity Overheat /Fan FailDisk Activity Failure (solid)/ Hot Spare OK (blinking) 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 7-5

REO 4600 User Guide Working With the Appliance Back Panel LEDs The back panel of the appliance includes several LEDs associated with various ports. These LEDs indicate the presence of links, activity and speed, as well as faults, on their corresponding ports. 1 2 3 4 5 6 4 1 - AC Power Indicator 4 - FC Ports Activity/Fault 2 - Data Ports Activity 5 - Mgmt Port Activity/Link 3 - Data Ports Speed 6 - Mgmt Port Speed (see table) Figure 7-7. REO 4600 Port LEDs Table 7-1: Management & Data Port Indicator Display Options Mgmt & Data Ports LEDs Activity LED Speed LED No link OFF OFF Linked at 10 MB GREEN OFF Linked at 100 MB GREEN GREEN Linked at 1 GB GREEN YELLOW Activity at any speed GREEN (Blinking) N/A Table 7-2: FC Port Indicator Display Options FC Ports 0 & 1 LEDs Activity/Fault LED Loss of Sync, no Link AMBER Fault AMBER (Blinking) 1 GBit/s Link OFF 1 GBit/s Activity (date transfers) GREEN (Blinking) 2 GBit/s Link OFF 2 GBit/s Activity (date transfers) GREEN (Blinking) 4 GBit/s Link OFF 4 GBit/s Activity (date transfers) GREEN (Blinking) 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 7-6

REO 4600 User Guide Working With the Appliance Relocating (Moving) an Appliance IMPORTANT: To ensure preservation of data on the REO 4600, you should NOT turn off the appliance using the Power button; you should always use the Shut Down option in the GUI. 1. In the REO 4600 GUI, under the System tab, click Maintenance (Figure 7-8). Figure 7-8: System Maintenance Screen 2. Under Shut Down/Restart, click Shut Down. 3. When the confirmation message appears, click OK. 4. Wait several minutes, and then disconnect the AC line cords from the power mains. 5. Unplug and label all connections, so that you can reattach them using the same connection configuration. 6. To lessen the weight of the appliance, remove the disk carriers, verifying each slot and disk carrier is still numbered. CAUTION: To preserve the configuration and avoid loss of data, you must return each carrier to the same slot in the appliance after you have moved it. Do not remove the disk drives from their carriers. Doing so voids the drive warranty. NOTE: If the slots in the appliance and the disk carriers themselves are not labeled, label them now so that you know which carrier must be inserted into which slot after you have moved the appliance to the new location. For information on how the disks and slots are numbered, see “Reviewing How the Disk Drives are Numbered” on page 7-4. a. For each drive assembly, press the button to release the assembly handle. Figure 7-9: Disk Carrier Removal 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 7-7 REO 4600 User Guide Working With the Appliance b. Use the lever to pull the carrier out of the slot. c. Place the drive assembly on an ESD surface. d. Repeat Steps a–c for the remaining disk carriers. 7. Remove the appliance from the rack by extending the slide rails and then releasing the slide locks. CAUTION: Extending a unit that has empty spaces beneath it might cause the rack to tip forward or might cause personal injury. Overland strongly recommends that two people support and slide the unit in the rack. 8. Move the appliance to the new location and insert it into the rack. 9. Reinsert the disk carriers in to the appropriate slots in the chassis. IMPORTANT: To preserve the configuration and avoid loss of data, you must return each carrier to the same slot in the appliance after you have moved it. 10. Connect the appliance to the network. For more information, see “Attaching Cables” on page 2-8. 11. Attach the power cords to the appliance and plug the cords in to an AC power source. Because the appliance is configured to restart automatically in case of a power outage, connecting it to the power source automatically invokes the start process. IMPORTANT: If you do not complete the preceding steps in the order shown, the appliance might start in an error state. If the appliance starts in an error state (that is, you are unable to access the GUI), use the steps outlined under “Shutting Down the Appliance” on page 3-3 to shut down the appliance. Then turn the appliance ON by pressing and holding the Power button for no more than one (1) second. 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 7-8

8 CHAPTER Expanding Capacity This chapter explains how to expand the capacity of a REO 4600 appliance. It describes how you can add up to four expansion arrays to expand the performance capacity.

IMPORTANT: To ensure data integrity, back up the data on the appliance before you perform any of these procedures. Attaching Expansion Arrays Additional storage can be added by installing one to four SnapServer EXP expansion arrays to a REO 4600 head unit. CAUTION: If you intend to attach more than one expansion array, we recommend you attach only one at a time to the REO 4600 and let the REO 4600 recognize it before connecting the additional expansion arrays. 1. Power off the REO 4600 head unit (and followed by any expansion arrays attached). 2. Using the installation instructions provided with the new expansion array, install the unit in the rack, attach the cables, and power it ON. CAUTION: It is critical to the process that you set up the hardware and power ON the expansion arrays before you power ON the REO 4600 head unit. Figure 8-1: Rear Panel, Expansion Array 3. Power ON the head unit. Wait while the system reboots. 4. If additional expansion arrays are being added, repeat Steps 1–3. 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 8-1 SAS Connections REO 4600 User Guide Expanding Capacity 5. Once all new expansion arrays are attached, log on to the GUI, and under the System tab, click Disk Management (Figure 8-2). Figure 8-2: Disk Management Screen 6. To add all the newly installed storage, including any Free drives in the head unit, click Add New Storage. CAUTION: If any RAID sets exist on the expansion arrays, they are deleted during this process as new RAID sets are built. This can take a long time and requires a reboot, so it is recommended that no backup jobs be running. The system adds all the additional storage to the storage pool, which is also reflected on the VTL Summary or Standalone Device Summary pages. You can now use the Create tab menu items to create additional devices or expand the capacity of existing ones. 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 8-2

9 CHAPTER Hardware Compression IMPORTANT: This chapter provides information about the hardware compression feature that is an optional, add-on component for the REO 4600 appliance.

The REO 4600 with the data compression hardware card installed offers high performance compression and decompression capabilities for use in virtual tape library applications. It provides 2:1 or better compression without sacrificing performance. NOTE: Hardware compression is only available for virtual tape drives; it is not an available option for disk targets. Using Compression As soon as the compression card is installed, compression is enabled and is available for all virtual tape devices. The REO 4600 implements in-band host application enable or disable requests, and reports the compression status for the virtual tape devices. NOTE: Hardware compression settings cannot be changed manually. GUI Screens Impacted Before the optional hardware compression card is installed, the System Summary screen under the System tab shows “Not Configured” in the Hardware Compression field. Once the card is successfully installed, the caption changes to “Configured, Operational.” NOTE: Should the card fail, the entry would change to “Configured, Not Operational.” Error Messages Fatal errors occur if the compression card is not detected during power-up, fails POST, or reports an error. These errors are reported out-of-band (e-mail alerts and SNMP traps). Hardware The hardware compression card contains four (4) compression/decompression engines. It provides stateless compression and decompression using an enhanced version of the LZS (eLZS) algorithm that prevents expansion of the compressed data. Each one of the individual engines can be programmed to either compress or decompress data. The card doesn't have any internal memory to hold the user data. The data is transferred from an external input memory buffer using Direct Memory Access (DMA), 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 9-1 REO 4600 User Guide Hardware Compression routed to one of the idle compression/decompression engines by the Field-Programmable Gate Array (FPGA), verified once the operation is complete, then transferred to an external output memory buffer also using DMA. The compression card contains a command register that is loaded (by the software application) with descriptors specifying the operation to be executed: compression or decompression, source and destination locations, or where to store the completion status. This allows up to four (4) compression/decompression operations to be executing concurrently. There are no special requirements to handle simultaneous compression and decompression operations. Compression Algorithm The eLZS compression algorithm used by the compression card is similar to the compression algorithm used by the LTO tape drives, as they share the same roots with the original LZS algorithm. Generally, eLZS yields slightly better compression performance for typical backup data sets (data that generally compresses in the 2:1 to 4:1 range), while LTO yields slightly better compression for data sets that have higher compression ratios, e.g., bit-mapped picture files. This small difference between these two compression algorithms is significant only for applications where the data stored in a virtual tape cartridge must be copied to an equivalent physical tape cartridge. For these applications, the application will need to reduce the total capacity of the virtual tape cartridge to 90% of the total capacity of the physical tape cartridge to ensure that all the data can be copied. 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ 9-2

A APPENDIX Basic Troubleshooting As you troubleshoot the appliance, keep the following guidelines in mind:

• Always use the GUI Shut Down/Restart option to shut down the appliance, NOT the appliance Power button, to prevent data stream disruption. • Never remove the chassis cover while it is operating. • If an expansion unit does not work, make sure that all connections are secure. Alerts The REO appliance continuously monitors its performance and routinely checks for failures. If you use the messaging options, an e-mail message or Simple Network Management Protocol (SNMP) trap (or both) is sent whenever the Status of a RAID volume becomes anything other than OK. Each alert that is sent reports the status of all volumes on the appliance. Each RAID alert includes the REO appliance's system name (found under the System Configuration page in the GUI), the serial number of the appliance that issued the alert, and the description of the alert. The appliance S/N is the serial number displayed on the physical unit, so for the head unit it's simply the REO S/N and for expansion units it's the Enclosure S/N. The RAID alert included in the body of the e-mail/SNMP message has the following format: System: <system name> Chassis S/N: <chassis serial number> - <event description> If you use the messaging option, an alert is sent via e-mail or SNMP (or both) in the following situations. 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ A-1 REO 4600 User Guide Basic Troubleshooting List of Appliance-Specific Alerts The following is a list of the alerts. SNMP Trap ID E-Mail Subject E-Mail Body and SNMP Trap Description ALERT_TEST n/a Server Name: <SystemName>, Serial Number: <UnitSerialNumber>. SNMP test trap generated from the GUI interface

ALERT_DYNAMIC_ TAPE_CAPACITY_SAFE Device Event, Unit SN: <UnitSerialNumber>. Server Name: <SystemName>, Serial Number: <UnitSerialNumber>. Remaining Capacity Level: Safe Server Name: <SystemName>, Serial Number: <UnitSerialNumber>. Remaining Capacity Level: Safe ALERT_DYNAMIC_ TAPE_CAPACITY_ CRITICAL Device Event, Unit SN: <UnitSerialNumber>. Server Name: <SystemName>, Serial Number: <UnitSerialNumber>. Remaining Capacity Level: Critical <percentage> Server Name: <SystemName>, Serial Number: <UnitSerialNumber>. Remaining Capacity Level: Critical <percentage> ALERT_DYNAMIC_ TAPE_CAPACITY_ WARNING Device Event, Unit SN: <UnitSerialNumber>. Server Name: <SystemName>, Serial Number: <UnitSerialNumber>. Remaining Capacity Level: Warning <percentage> Server Name: <SystemName>, Serial Number: <UnitSerialNumber>. Remaining Capacity Level: Warning <percentage> ALERT_GENERAL_ CAPACITY Storage Pool Event, Unit SN: <UnitSerialNumber>. Server Name: <SystemName>, Serial Number: <UnitSerialNumber>. Safe level Alert: Percent used: <percentage>, Total Capacity (GB): <capacity> Available Capacity (GB): <capacity Server Name: <SystemName>, Serial Number: <UnitSerialNumber>. Safe level Alert: Percent used: <percentage>, Total Capacity (GB): <capacity> Available Capacity (GB): <capacity ALERT_RAID_UNIT_ ADDED ALERT: RAID UNIT ADDED Server Name: <SystemName>, Serial Number: <UnitSerialNumber>. Controller <number>, <HOT SPARE, RAID5> PU:<number> ADDED ALERT_RAID_UNIT_ REMOVED ALERT: RAID UNIT REMOVED Server Name: <SystemName>, Serial Number: <UnitSerialNumber>. Controller <number>, <RAID5> PU:<number> REMOVED

ALERT_RAID_UNIT_OK ALERT: RAID UNIT OK Server Name: <SystemName>, Serial Number: <UnitSerialNumber>. Controller <number>, <RAID5> PU:<number> OK

ALERT_RAID_UNIT_ INITIALIZING ALERT: RAID UNIT INITIALIZING Server Name: <SystemName>, Serial Number: <UnitSerialNumber>. Controller <number>, <RAID5> PU:<number> INITIALIZING Server Name: <SystemName>, Serial Number: <UnitSerialNumber>. Controller <number>, <RAID5> PU:<number> INITIALIZING ALERT_RAID_UNIT_ VERIFYING ALERT: RAID UNIT VERIFYING Server Name: <SystemName>, Serial Number: <UnitSerialNumber>. Controller <number>, <RAID5> PU:<number> VERIFYING ALERT_RAID_UNIT_ DEGRADED ALERT: RAID UNIT DEGRADED Server Name: <SystemName>, Serial Number: <UnitSerialNumber>. Controller <number>, <RAID5> PU:<number> DEGRADED ALERT_RAID_UNIT_ REBUILDING ALERT: RAID UNIT REBUILDING Server Name: <SystemName>, Serial Number: <UnitSerialNumber>. Controller <number>, <RAID5> PU:<number> REBUILDING Server Name: <SystemName>, Serial Number: <UnitSerialNumber>. Controller <number>, <RAID5> PU:<number> REBUILDING

10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ A-2 REO 4600 User Guide Basic Troubleshooting SNMP Trap ID E-Mail Subject E-Mail Body and SNMP Trap Description

ALERT_RAID_UNIT_ INOPERABLE ALERT: RAID UNIT INOPERABLE Server Name: <SystemName>, Serial Number: <UnitSerialNumber>. Controller <number>, <RAID5> PU:<number> INOPERABLE Server Name: <SystemName>, Serial Number: <UnitSerialNumber>. Controller <number>, <RAID5> PU:<number> INOPERABLE ALERT_RAID_UNIT_ INITIALIZATION_ COMPLETE ALERT: RAID UNIT INITIALIZATION COMPLETED Server Name: <SystemName>, Serial Number: <UnitSerialNumber>. Controller <number>, <RAID5> PU:<number> INITIALIZATION COMPLETED Server Name: <SystemName>, Serial Number: <UnitSerialNumber>. Controller <number>, <RAID5> PU:<number> INITIALIZATION COMPLETED ALERT_RAID_UNIT_ VERIFICATION_ COMPLETE ALERT: RAID UNIT VERIFICATION COMPLETED Server Name: <SystemName>, Serial Number: <UnitSerialNumber>. Controller <number>, <RAID5> PU:<number> VERIFICATION COMPLETED Server Name: <SystemName>, Serial Number: <UnitSerialNumber>. Controller <number>, <RAID5> PU:<number> VERIFICATION COMPLETED ALERT_RAID_UNIT_ REBUILDING_COMPLETE ALERT: RAID UNIT REBUILD COMPLETED Server Name: <SystemName>, Serial Number: <UnitSerialNumber>. Controller <number>, <RAID5> PU:<number> REBUILD COMPLETED Server Name: <SystemName>, Serial Number: <UnitSerialNumber>. Controller <number>, <RAID5> PU:<number> REBUILD COMPLETED ALERT_HOT_SPARE_DISK_C ONDITION ALERT: HOTSPARE DISK CONDITION Server Name: <SystemName>, Serial Number: <UnitSerialNumber>. Controller <number>, HOTSPARE <REMOVED, ACTIVATED, FAILED> Server Name: <SystemName>, Serial Number: <UnitSerialNumber>. Controller <number>, HOTSPARE <REMOVED, ACTIVATED, FAILED> ALERT_HOT_SPARE_DISK_P RESENT ALERT: HOTSPARE PRESENT Server Name: <SystemName>, Serial Number: <UnitSerialNumber>. Controller <number>, HOTSPARE PRESENT ALERT_HOT_SPARE_DISK_N OT_PRESENT ALERT: HOTSPARE NOT PRESENT Server Name: <SystemName>, Serial Number: <UnitSerialNumber>. Controller <number>, HOTSPARE NOT PRESENT Server Name: <SystemName>, Serial Number: <UnitSerialNumber>. Controller <number>, HOTSPARE NOT PRESENT

10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ A-3 REO 4600 User Guide Basic Troubleshooting List of Generic SNMP Alerts (Traps) The following lists the generic SNMP traps that you might see. Trap Additional Information Cold Start Trap Starting snmpd (issuing service snmpd start) generates the following Cold Start trap: 2005-09-20 07:33:30 172.20.16.93(via UDP: [10.20.16.93]:32784) TRAP, SNMP v1, community public NET-SNMP-TC::linux Cold Start Trap (0) Uptime: 0:00:00.03 nsNotifyShutdown Shutting down snmpd (issuing service snmpd stop) generates the following nsNotifyShutdown trap: 2005-09-20 07:30:39 172.20.16.93(via UDP: [10.20.16.93]:32781) TRAP, SNMP v1, community public NET-SNMP-MIB::netSnmpNotificationPrefix Enterprise Specific Trap (NET-SNMP- AGENT-MIB::nsNotifyShutdown) Uptime: 17:54:44.69 NOTE: Restarting snmpd (issuing service snmpd restart) generates both of the preceding traps. nsNotifyRestart Modifying the SNMP configuration parameters through the GUI sends a SIGHUP to snmpd, which causes it to re-read its conf files and generate the following nsNotifyRestart trap: 2005-09-20 07:38:54 172.20.16.93(via UDP: [10.20.16.93]:32791) TRAP, SNMP v1, community public NET-SNMP-MIB::netSnmpNotificationPrefix Enterprise Specific Trap (NET-SNMP- AGENT-MIB::nsNotifyRestart) Uptime: 0:02:58.05 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ A-4 REO 4600 User Guide Basic Troubleshooting Trap Additional Information Generate linkUp • When you start or restart snmpd, it generates the corresponding linkUp and linkDown traps for all network interfaces (Note that ifIndex contains the interface index number): 2005-09-20 07:39:54 172.20.16.93(via UDP: [10.20.16.93]:32791) TRAP, SNMP v1, community public SNMPv2-SMI::mib-2.88.2 Enterprise Specific Trap (1) Uptime: 0:03:58.06 SNMPv2-SMI::mib-2.88.2.1.1 = STRING: "Generate linkUp" SNMPv2-SMI::mib-2.88.2.1.2 = "" SNMPv2-SMI::mib-2.88.2.1.3 = "" SNMPv2-SMI::mib-2.88.2.1.4 = OID: RFC1213-MIB::ifOperStatus.1 SNMPv2-SMI::mib-2.88.2.1.5 = INTEGER: 1 RFC1213-MIB::ifIndex.1 = INTEGER: 1 2005-09-20 07:39:54 172.20.16.93(via UDP: [10.20.16.93]:32791) TRAP, SNMP v1, community public SNMPv2-SMI::mib-2.88.2 Enterprise Specific Trap (1) Uptime: 0:03:58.06 SNMPv2-SMI::mib-2.88.2.1.1 = STRING: "Generate linkUp" SNMPv2-SMI::mib-2.88.2.1.2 = "" SNMPv2-SMI::mib-2.88.2.1.3 = "" SNMPv2-SMI::mib-2.88.2.1.4 = OID: RFC1213-MIB::ifOperStatus.2 SNMPv2-SMI::mib-2.88.2.1.5 = INTEGER: 1 RFC1213-MIB::ifIndex.2 = INTEGER: 2 2005-09-20 07:39:54 172.20.16.93(via UDP: [10.20.16.93]:32791) TRAP, SNMP v1, community public SNMPv2-SMI::mib-2.88.2 Enterprise Specific Trap (1) Uptime: 0:03:58.06 SNMPv2-SMI::mib-2.88.2.1.1 = STRING: "Generate linkUp" SNMPv2-SMI::mib-2.88.2.1.2 = "" SNMPv2-SMI::mib-2.88.2.1.3 = "" SNMPv2-SMI::mib-2.88.2.1.4 = OID: RFC1213-MIB::ifOperStatus.3 SNMPv2-SMI::mib-2.88.2.1.5 = INTEGER: 1 RFC1213-MIB::ifIndex.3 = INTEGER: 3 • If you enable a port on the Network Configuration page, it generates the following link- up trap: 2005-09-20 07:54:54 172.20.16.93(via UDP: [10.20.16.93]:32791) TRAP, SNMP v1, community public SNMPv2-SMI::mib-2.88.2 Enterprise Specific Trap (1) Uptime: 0:18:58.12 SNMPv2-SMI::mib-2.88.2.1.1 = STRING: "Generate linkUp" SNMPv2-SMI::mib-2.88.2.1.2 = "" SNMPv2-SMI::mib-2.88.2.1.3 = "" SNMPv2-SMI::mib-2.88.2.1.4 = OID: RFC1213-MIB::ifOperStatus.2 SNMPv2-SMI::mib-2.88.2.1.5 = INTEGER: 1 RFC1213-MIB::ifIndex.2 = INTEGER: 2 Generate linkDown If you disable a port on the Network Configuration page, it generates the following linkDown trap: 2005-09-20 07:51:54 10.20.16.93(via UDP: [10.20.16.93]:32791) TRAP, SNMP v1, community public SNMPv2-SMI::mib-2.88.2 Enterprise Specific Trap (1) Uptime: 0:15:58.13 SNMPv2-SMI::mib-2.88.2.1.1 = STRING: "Generate linkDown" SNMPv2-SMI::mib-2.88.2.1.2 = "" SNMPv2-SMI::mib-2.88.2.1.3 = "" SNMPv2-SMI::mib-2.88.2.1.4 = OID: RFC1213-MIB::ifOperStatus.2 SNMPv2-SMI::mib-2.88.2.1.5 = INTEGER: 2 RFC1213-MIB::ifIndex.2 = INTEGER: 2 Authentication Failure Trap If you submit a request that contains an invalid community string, it generates the following trap: 2005-09-21 09:44:36 172.20.16.93(via UDP: [10.20.16.93]:32840) TRAP, SNMP v1, community public NET-SNMP-TC::linux Authentication Failure Trap (0) Uptime: 23:15:51.83 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ A-5 REO 4600 User Guide Basic Troubleshooting Using the Log Files The REO 4600 creates and maintains log files that contain diagnostic information intended for use by Overland Storage Technical Support in troubleshooting issues you might encounter. The logs are updated every 60 seconds, with new information appended to the beginning of the applicable file a new log generated and the old log saved as a previous version. When the maximum log file size is reached, previous information is deleted so that new information can be added. NOTE: When using Microsoft Internet Explorer (IE) as your browser, later versions of IE require a confirmation before downloading a file. The first time you try to download the log file, a security bar appears at the top of the page requiring you to approve the download. Because IE interrupts the actual download, it will fail this first time. Simply download the file again. On this and each sequential download request, the file should download correctly as detailed below. To create and view the log files: 1. In the left pane, under Troubleshoot tab, click System Diagnostics. 2. In the Support Request File section (Figure A-1), click Save. Figure A-1: Save/Restore Appliance Configuration Section 3. At the message about the time it will take to create the log, click OK. 4. When the message appears (Figure A-2) that indicates a TGZ file was successfully created, click Continue, and then save the file to a location on your management system. Figure A-2: Successful Log File Creation Message IMPORTANT: If you are using Windows Server 2003 or Windows XP, be aware that the file extension might be changed to TAR, which prevents the file from opening correctly. Manually change the extension to the original TGZ extension. 5. After the file is saved, the Overland support representative will guide you through the log to find the applicable information or ask you to use your e-mail program to send the file to Overland Support. 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ A-6 REO 4600 User Guide Basic Troubleshooting Tip: To view a file on a Windows system after you have downloaded it, Overland Storage recommends that you use WordPad, because it displays the configuration information in an easy-to-use format (see Figure A-3). Figure A-3: Log File Displayed in WordPad 6. If asked, use your e-mail application to forward the TGZ log file to: support@overlandstorage.com Windows Application Event Log Errors A GetDriveInfo Failure! error can occur when drives are reserved under Backup Exec. When Backup Exec cannot get access to a drive for a backup job, it will attempt to retry. After a period of time, if no drives become available, Backup Exec gets stuck in a continuous loop of reporting errors. These can be seen in the Windows Event Viewer in the Application section. Backup Exec must be reset to get back to a good state. This can be resolved by using schedule-based data movement policies on the REO appliance to ensure that all server backup jobs are completed before any policies start. Unable to Access the Appliance To troubleshoot a loss of access to the appliance: 1. Check the LED lights on the appliance. If lights are not on, check all connections between the appliance and the power source. 2. Make sure that all applicable IP addresses are correct. 3. Make sure the network cables are properly installed. The network cables must be securely attached at all connections. If the cables appear to be properly attached but the problem persists, try different cables. Appliance Does Not Start Correctly To determine why the appliance does not start, use the GUI to restart the REO appliance. For information on restarting the appliance even if you do not have access to the GUI, see “Shutting Down the Appliance” on page 3-3. If this does not solve the problem, contact Customer Support at Overland Storage. For contact information, see “Customer Support” on page F-1. 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ A-7 REO 4600 User Guide Basic Troubleshooting Unable to Log On to the GUI If you are unable to log on to the GUI, it could be one of these problems: • The privacy setting is set too high. The GUI is a Web-enabled program that requires the use of cookies; setting the privacy or security option too high prevents the program from working correctly. • You are entering the logon name and password incorrectly. To troubleshoot GUI login problems • Make sure that you are entering the logon name and password correctly; they are case sensitive. The GUI uses the following defaults for the logon name and password: Name: Administrator Password: system • If you are able to log on, but then are logged off unexpectedly, make sure that you are the only person accessing the GUI. For more information, see “Unexpectedly Logged Off” on page A-11. • If you are using Windows Server 2003, perform the steps outlined in the section “Internet Explorer Does Not Redirect from IP Address on Windows Server 2003.” • If you are unable to access the GUI in Internet Explorer running on any version of Windows other than Windows Server 2003, perform the steps outlined in the section “Internet Explorer Does Not Redirect from IP Address on Windows Server 2003.” Internet Explorer Does Not Redirect from IP Address on Windows Server 2003 If you access the GUI using Internet Explorer running on Windows Server 2003, you might see a blank screen (Figure A-4) after you enter a valid IP address for the REO 4600 to which you are trying to connect. Figure A-4: Blank Screen Possible After Entering Valid IP Address This happens because Internet Explorer has an enhanced security configuration that is enabled by default in Windows Server 2003. This setting does not allow the server to redirect the IP address to the correct location. To prevent this from occurring, you need to add the IP address for the appliance to the list of trusted sites for this server. Reset Internet Explorer Security Settings 1. Launch Internet Explorer. 2. In the Tools menu, click Internet Options. 3. On the Privacy tab, move the slider to Medium (or lower). 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ A-8 REO 4600 User Guide Basic Troubleshooting 4. To save your changes, click OK. GUI Stops Responding or Displays a Refresh Error When you are working in the GUI, one of the following situations might occur: • If the GUI stops responding unexpectedly, it might be because a failure occurred on the appliance. (When a failure occurs and a RAID volume moves into an INOPERABLE status, the system remains inaccessible while the controller attempts to recover the volume.) If the system stopped responding, complete the steps outlined under “Addressing an Unresponsive GUI.” • If you click a Submit button and you get an error about using the Refresh button or no response is taken, it might be because your browser is not set to allow the use of Java applets and scripts. If the error message appeared, complete the steps outlined under “Addressing a Refresh Error Message” on page A-9. If the system stopped responding, complete the steps outlined under “Addressing an Unresponsive GUI.” Addressing an Unresponsive GUI To address an unresponsive GUI 1. Stop using the GUI for approximately five minutes. IMPORTANT: If you continue to try and invoke a response from the GUI, it might increase the recovery time. 2. If access to the GUI returns, use the Disk Management page to check the status of each volume, and then take the applicable action. • If the status is INOPERABLE, complete the steps outlined under “Troubleshooting a Disk Drive Problem” on page A-15. • If the status is OK, resume normal operation. If you are using RAID 5 or RAID 6, you can also execute a Verify to ensure that the volume is functioning correctly. 3. If access to the GUI does not return, shut down the appliance using the steps outlined under “Shutting Down the Appliance” on page 3-3, and then restart the appliance. Addressing a Refresh Error Message Complete the applicable steps for your browser. This section describes procedures for Internet Explorer and for Mozilla. To enable scripting in Internet Explorer 1. Launch Microsoft Internet Explorer. 2. In the Tools menu, click Internet Options. 3. On the Security tab (Figure A-5), click Custom Level. 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ A-9 REO 4600 User Guide Basic Troubleshooting Figure A-5: Internet Options Security Tab 4. In the Scripting section (Figure A-6), under Scripting of Java applets, select Enable, and click OK.Figure A-6: Enabling Java Scripting To enable scripting in Mozilla 1. Launch Mozilla Firefox. 2. In the Tools menu, click Options. 3. Click the Web Features icon. 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ A-10 REO 4600 User Guide Basic Troubleshooting 4. Select the Enable JavaScript check box (Figure A-7), and click OK. Figure A-7: Mozilla Web Features Options Out of Resources Message When Trying to Create a VTL If you try to create a VTL and the process fails (see the following error message), it might because of one of the following: • You have used the maximum number of tape drives or tape cartridges. • The appliance could not create one of the VTL components (changer, drive, or cartridge). • The appliance has used the maximum number of logical volumes allowed. • The appliance could not open and initialize the tape changer. • The appliance could not save the configuration file for the VTL. • If using a REO 4600 with a hardware compression card installed, the compression card might have failed. Unexpectedly Logged Off When you are using the GUI, you should be aware of the following: • If you log on from one system and then log on from another system, the GUI automatically logs you off from the first system. • If another user logs on to the GUI, you are automatically logged off. A message similar to the preceding one appears. • After an hour of inactivity, the GUI automatically logs you off the system. Unable to Connect to the Disks via Windows Explorer If you are unable to access the disks on the appliance, it might be because the system or a disk on the appliance is malfunctioning. 10400253-101 01/2010 ©2007-10 Overland Storage, Inc. ◀ A-11


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