Overland Storage 9100, 9100C User Manual

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Overland Storage

REO® 9100/9100c

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User Guide

5.0.1

June 2008

10400175-101

REO 9100/9100c User Guide

Overland®, Overland Storage®, LoaderXpress®, Multi-SitePAC®, NEO SERIES®, PowerLoader®, Protection OS®, REO®, REO SERIES®, ULTAMUS®, VR2®, WebTLC®, and XchangeNOW® are registered trademarks of Overland Storage, Inc.

ARCvault™, NEO™, Simply Protected™, Simply Protected Storage™, SnapWrite™, and ULTAMUS SERIES™ 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.

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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.

REO 9100/9100c User Guide

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Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice unmodified, this list of conditions, and the following disclaimer.

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THIS SOFTWARE I10400175-101S PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

GNU GENERAL PUBLIC LICENSE

NOTE! This copyright does *not* cover user programs that use kernel services by normal system calls - this is merely considered normal use of the kernel, and does *not* fall under the heading of “derived work”.

Also note that the GPL below is copyrighted by the Free Software Foundation, but the instance of code that it refers to (the Linux kernel) is copyrighted by me and others who actually wrote it.

Also note that the only valid version of the GPL as far as the kernel is concerned is _this_ particular version of the license (i.e., v2, not v2.2 or v3.x or whatever), unless explicitly otherwise stated.

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GNU GENERAL PUBLIC LICENSE

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The licenses for most software are designed to take away your freedom to share and change it. By contrast, the GNU General Public License is intended to guarantee your freedom to share and change free software--to make sure the software is free for all its users. This General Public License applies to most of the Free Software Foundation's software and to any other program whose authors commit to using it. (Some other Free Software Foundation software is covered by the GNU Library General Public License instead.) You can apply it to your programs, too.

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TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION

0. This License applies to any program or other work which contains a notice placed by the copyright holder saying it may be distributed under the terms of this General Public License. The “Program”, below, refers to any such program or work, and a “work based on the Program” means either the Program or any derivative work under copyright law: that is to say, a work containing the Program or a portion of it, either verbatim or with modifications and/or translated into another language. (Hereinafter, translation is included without limitation in the term “modification”.) Each licensee is addressed as “you”.

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1. You may copy and distribute verbatim copies of the Program's source code as you receive it, in any medium, provided that you conspicuously and appropriately publish on each copy an appropriate copyright notice and disclaimer of warranty; keep intact all the notices that refer to this License and to the absence of any warranty; and give any other recipients of the Program a copy of this License along with the Program.

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REO 9100/9100c User Guide

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REO 9100/9100c User Guide

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Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

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Project: NDMJOB

Ident: $Id: $

Description: NDMPv0, represented here, is a fictitious version used to negotiate NDMP protocol version for the remainder of the session. Early, as a connection is being set up, the version of the protocol is unknown. The first messages exchanged negotiate the protocol version, and such messages are in the NDMP format. This is different than other protocols, such as ONC RPC which negotiate version by lower layers before the objective protocol becomes involved. During the negotiation, we deem the connection to be in “v0” mode. This NDMPv0 protocol specification is the subset of the NDMP protocol(s) required for the negotiation, and necessarily must remain immutable for all time.

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Various copyrights apply to this package, listed in various separate parts below. Please make sure that you read all the parts. Up until 2001, the project was based at UC Davis, and the first part covers all code written during this time. From 2001 onwards, the project has been based at SourceForge, and Networks Associates Technology, Inc. hold the copyright on behalf of the wider Net-SNMP community, covering all derivative work done since then. An additional copyright section has been added as Part 3 below also under a BSD license for the work contributed by Cambridge Broadband Ltd. to the project since 2001.

An additional copyright section has been added as Part 4 below also under a BSD license for the work contributed by Sun Microsystems, Inc. to the project since 2003.

Code has been contributed to this project by many people over the years it has been in development, and a full list of contributors can be found in the README file under the THANKS section.

---- Part 1: CMU/UCD copyright notice: (BSD like) -----

Derivative Work - 1996, 1998-2000

Permission to use, copy, modify and distribute this software and its documentation for any purpose and without fee is hereby granted, provided that the above copyright notice appears in all copies and that both that copyright notice and this permission notice appear in supporting documentation, and that the name of CMU and The Regents of the University of California not be used in advertising or publicity pertaining to distribution of the software without specific written permission.

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---- Part 2: Networks Associates Technology, Inc. copyright notice (BSD) -----

REO 9100/9100c User Guide

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

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---- Part 3: Cambridge Broadband Ltd. copyright notice (BSD) -----

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---- Part 4: Sun Microsystems, Inc. copyright notice (BSD) -----

Use is subject to license terms below.

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---- Part 6: Cisco/BUPTNIC copyright notice (BSD) -----

REO 9100/9100c User Guide

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

* Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

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Overland Storage, Inc. 4820 Overland Avenue San Diego, CA 92123 U.S.A.

Tel: 1.800.729.8725 (toll-free U.S.) Tel: +1.858.571.5555 Option 5 (International) Fax: +1.858.571.0982 (general) Fax: +1.858.571.3664 (sales) www.overlandstorage.com

About this Guide

The Overland Storage REO 9100 Disk-Based Backup-and-Recovery 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 from Overland.

The REO 9100 comes with a standard software package called Protection OS™ already installed. Protection need to configure your REO 9100 to work within your network environment.

This document includes information that helps you set up the REO 9100, including system requirements, questions that you need to answer before installing the product, and installation procedures.

Preface

OS software contains all the basic features that you

Product Documentation

REO product documentation and additional literature are available online at:

http://www.overlandstorage.com.

REO 9100/9100c User Guide Preface

Conventions

This user guide exercises several typographical conventions to help explain how to use the REO 9100.

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.

Flow Indicator (>) Words in bold font with a greater than sign between them indicate the

Safety Notices

General Cautions

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.

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 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.

CAUTION: Before touching any of the appliance components, ground yourself and

take antistatic precautions. Use an antistatic wrist strap and a grounding wire as a minimum precaution.

CAUTION: Each storage appliance must have a good electrical ground connection

through each power cord, through the building power grid to the point of origin for the building power source entry.

REO 9100/9100c User Guide Preface

CAUTION: Circuit Overloading—Consideration should be given to the connection of

the equipment to the supply circuit and the effect that overloading of circuits might have on overcurrent protection and supply wiring. Appropriate consideration of equipment nameplate ratings should be used when addressing the concern.

CAUTION: Reliable Grounding – Reliable grounding of rack-mounted equipment

should be maintained. Particular attention should be given to supply connections other than direct connections to the branch circuit (for example, use of power strips).

Installation Warnings and Notes

WARNING: To prevent personal injury and equipment damage, have someone assist you during installation. If necessary, reduce the weight of the storage appliance by removing the disk drives and PS unit.

WARNING: Mechanical Loading—Prevent instability by installing heavier items into the bottom of the equipment rack. Mounting of the equipment in a rack should be such that a hazardous condition is not achieved due to uneven loading to prevent personal injury.

CAUTION: Ensure that your equipment rack is placed in a dust-free, well ventilated

area close to a UPS. Leave enough room behind the rack for servicing and to allow for sufficient airflow.

CAUTION: Elevated Operating Ambient Temperature—When installed in a closed or

multi-unit rack assembly, the operating ambient temperature of the rack environment may be greater than the room ambient. Therefore, consideration should be given to installing the equipment in an environment compatible with the manufacturer's maximum recommended ambient (TMRA).

Preface

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

Register your REO 9100 ............................................................................................................................... 2-1

Preparing the Array and Installation Area ............................................................................................... 2-2

Unpacking the REO 9100 ..................................................................................................................... 2-2

Preparing the Installation Area ............................................................................................................ 2-2

Mounting the Appliance in a Rack .......................................................................................................... 2-3

Installing the Rail Kit .............................................................................................................................. 2-3

Inserting the Appliance ........................................................................................................................ 2-4

Reinstalling Drive Carrier Assemblies ................................................................................................... 2-5

Attaching Cables ....................................................................................................................................... 2-6

Connecting a UPS ...................................................................................................................................... 2-7

Chapter 3 - Powering Up the Appliance

Verifying Insertion of Disks .......................................................................................................................... 3-1

Enabling Power ........................................................................................................................................... 3-1

Power Supplies ...................................................................................................................................... 3-2

Shutting Down the Appliance ................................................................................................................... 3-4

Backup Power ............................................................................................................................................. 3-4

UPS Power Monitoring .......................................................................................................................... 3-5

Behavior When Connected to UPS ..................................................................................................... 3-5

Supported UPS Models ......................................................................................................................... 3-5

Chapter 4 - Configuring the REO Software

Set Up Network Addressing ....................................................................................................................... 4-1

Logging On ............................................................................................................................................ 4-1

Entering Your Network Configuration Settings ...................................................................................4-3

Configuring GbE Data Ports ...................................................................................................................... 4-4

Configuring FC Data Ports ......................................................................................................................... 4-5

Entering the System Information ............................................................................................................... 4-7

Using RAID Setup ....................................................................................................................................... 4-10

RAID Setup with One or More Expansion Units ................................................................................ 4-10

REO 9100/9100c User Guide Contents

Chapter 5 - Virtual Tape Library Setup

Adding a VTL ............................................................................................................................................... 5-1

Modifying Target Configuration Settings ................................................................................................. 5-4

Adding Initiators .......................................................................................................................................... 5-6

Displaying VTL Status ............................................................................................................................. 5-9

Backing Up the Appliance Configuration ............................................................................................. 5-10

Chapter 6 - Configuring Virtual Devices

Virtual Device Overview ............................................................................................................................ 6-1

Standalone Disk Devices ........................................................................................................................... 6-1

Creating Standalone Disk Devices ..................................................................................................... 6-2

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 ................................................................................................... 6-5

Dynamic Virtual Tapes .................................................................................................................... 6-5

Virtual Tapes .................................................................................................................................... 6-6

Modifying Standalone Tape Devices (Not Multisite) ........................................................................ 6-6

Modifying Multisite Tape Devices ........................................................................................................ 6-7

Add iSCSI Initiator Access for Standalone Devices ................................................................................ 6-9

Add FC Initiator Access for Standalone Devices .................................................................................. 6-10

Configuring a Static Route ...................................................................................................................... 6-10

Removing a Route .............................................................................................................................. 6-11

Add Multisite Initiator Access .................................................................................................................. 6-11

Create Multisite Tape ............................................................................................................................... 6-12

Creating a Multisite Tape Device ..................................................................................................... 6-13

Providing Job Schedule Information ................................................................................................ 6-14

Making a Backup Copy of the Configuration File ................................................................................6-15

Restoring Configuration Settings From Backup File ......................................................................... 6-16

Chapter 7 - Working With the Appliance

Logging On from Any System with Network Access ............................................................................... 7-1

Logging Off the GUI .............................................................................................................................. 7-2

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 ............................................................. 7-4

Managing Multi-SitePAC Jobs ............................................................................................................. 7-5

Refreshing the GUI Display ......................................................................................................................... 7-6

Reviewing How the Disk Drives are Numbered ....................................................................................... 7-6

Understanding What the LEDs Represent ................................................................................................ 7-7

Front Panel LEDs .................................................................................................................................... 7-7

Back Panel LEDs .................................................................................................................................... 7-8

Relocating (Moving) an Appliance ......................................................................................................... 7-9

Chapter 8 - Expanding Capacity

Attaching Expansion Arrays ....................................................................................................................... 8-1

Removing Expansion Arrays ...................................................................................................................... 8-3

Expanding Capacity by Adding Disk Drives ............................................................................................ 8-4

REO 9100/9100c User Guide Contents

Chapter 9 - Hardware Compression

Using Compression ..................................................................................................................................... 9-1

GUI Screens Impacted ......................................................................................................................... 9-1

Error Messages ....................................................................................................................................... 9-4

Hardware ..................................................................................................................................................... 9-4

Compression Algorithm ........................................................................................................................ 9-5

Enabling/Disabling Compression ........................................................................................................ 9-5

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

Unable to Access the Appliance .............................................................................................................A-7

REO 9100 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

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-12

Perpetual Loop of Audible Alerts on the Appliance ............................................................................A-12

Disabling the Audible Alarm on the Appliance ....................................................................................A-13

Recover System Page Appears in the GUI ............................................................................................A-13

Troubleshooting a Disk Drive Problem ....................................................................................................A-15

Rebuilding a RAID 5 Volume (Without Hot Spare) ..........................................................................A-15

Re-creating a Hot Spare (RAID 5 With Hot Spares) .........................................................................A-16

Purchasing a Spare Disk Drive .................................................................................................................A-16

Impact of a Power Outage .....................................................................................................................A-16

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-4

Declaration of Conformity ................................................................................................................... B-5

Appendix C - Protection OS 5.0.1 Options

Design Overview ........................................................................................................................................ C-1

Title Bar .................................................................................................................................................. C-2

Submenu Bar ........................................................................................................................................ C-2

Content Page ...................................................................................................................................... C-2

REO 9100/9100c User Guide Contents

Create Tab ................................................................................................................................................. C-3

Virtual Tape Library .............................................................................................................................. C-3

Dynamic Virtual Tape .......................................................................................................................... C-5

Virtual Tape ........................................................................................................................................... C-6

Disk ......................................................................................................................................................... C-7

iSCSI Initiator Access ............................................................................................................................ C-7

FC Initiator Access ............................................................................................................................... C-8

Multisite Initiator Access ...................................................................................................................... C-9

Multisite Tape ...................................................................................................................................... C-11

Configuring a Multi-Site Tape ..................................................................................................... C-11

Setting Up a Multi-Site Job Schedule ......................................................................................... C-12

Manage Tab ............................................................................................................................................ C-13

VTL Summary ...................................................................................................................................... C-13

Capacity Summary ...................................................................................................................... C-13

Resources ...................................................................................................................................... C-14

Current VTL Summary .................................................................................................................. C-14

Standalone Device Summary .......................................................................................................... C-15

Initiator Summary ............................................................................................................................... C-15

FC LUN Map ........................................................................................................................................ C-16

Job Manager ..................................................................................................................................... C-17

Job Details .................................................................................................................................... C-17

Modify Multisite Device Job Options ......................................................................................... C-18

Remote Devices ................................................................................................................................. C-20

System Tab ................................................................................................................................................ C-22

System Summary ................................................................................................................................ C-22

Disk Management ............................................................................................................................. C-24

Network Configuration ...................................................................................................................... C-25

Default Gateway ......................................................................................................................... C-25

Management Port ....................................................................................................................... C-25

Data Ports One & Two ................................................................................................................. C-25

FC Network Configuration ................................................................................................................ C-26

Static Route Configuration ............................................................................................................... C-27

Route Configuration .................................................................................................................... C-27

Add A Route ................................................................................................................................. C-28

Remove A Route .......................................................................................................................... C-28

RAID Setup .......................................................................................................................................... C-28

System Configuration ........................................................................................................................ C-29

System Information ...................................................................................................................... C-30

Logon Information ........................................................................................................................ C-30

E-mail Notification ........................................................................................................................ C-30

SNMP Configuration ..................................................................................................................... C-30

Set Time ......................................................................................................................................... C-31

Setting the Time Manually ........................................................................................................... C-32

Setting the Time by NTP Server ................................................................................................... C-32

Disabling NTP Time Synchronization ........................................................................................... C-32

Maintenance ...................................................................................................................................... C-33

Save/Restore Appliance Configuration .................................................................................... C-33

Shut Down/Restart ....................................................................................................................... C-33

System PACs ................................................................................................................................. C-34

REO 9100/9100c User Guide Contents

Update System ................................................................................................................................... C-34

System Information ...................................................................................................................... C-34

RAID Controller Firmware Updates ............................................................................................. C-35

Fibre Channel Firmware Updates ............................................................................................... C-35

Update Using Downloaded File ................................................................................................. C-35

Troubleshoot Tab ..................................................................................................................................... C-35

System Diagnostics ............................................................................................................................ C-35

Support Request File .................................................................................................................... C-36

Ping an IP Address ........................................................................................................................ C-36

Test Communication with a Remote (Multi-SitePAC) .............................................................. C-36

Test Bandwidth (Multi-SitePAC) .................................................................................................. C-37

Contact Us .......................................................................................................................................... C-37

Appendix D - Backup Networks

Backup Network Concepts .......................................................................................................................D-1

iSCSI Protocol .........................................................................................................................................D-1

iSCSI Architecture ............................................................................................................................D-1

Fibre Channel (FC) ................................................................................................................................D-1

Disk-to-Disk-to-Tape (D2D2T™) 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-2

IEEE iSCSI Names .............................................................................................................................. E-2

How Targets and Initiators are Associated ........................................................................................ E-2

Appendix F - Using Multi-SitePAC

Overview of Multi-SitePAC for REO Appliances ...................................................................................... F-1

Basic Multi-SitePAC Function ............................................................................................................... F-1

Multi-SitePAC Restrictions ..................................................................................................................... F-2

Setting Up a Multi-SitePAC Application ................................................................................................... F-3

Backing Up the Data and Data Transfer ............................................................................................ F-3

Performing a Restore Operation ......................................................................................................... F-7

Appendix G - Customer Support

Registering Your Product .......................................................................................................................... G-1

Locating Additional Information for Your Product ................................................................................. G-2

Updating the Appliance ........................................................................................................................... G-2

Determining the Version of the Protection OS ................................................................................. G-3

Checking For and Downloading Updates ........................................................................................ G-3

Updating the Appliance ..................................................................................................................... G-4

Glossary and Acronym List

Index

CHAPTER

Overview

Introduction and Requirements

The Overland REO 9100 Disk-Based Backup and Recovery Appliance with Protection OS™ embeds data protection intelligence, and delivers a core set of volume and device virtualization, management, and connectivity features. It supports both iSCSI and Fibre Channel (FC) connectivity.

The REO 9100 uses a Web-based interface and can be easily configured as 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 9100 comes in two versions: the basic appliance with optional software compression (REO 9100) or the always-on hardware compression version (REO 9100c). The REO 9100c comes with special data compression hardware that offers high performance compression and decompression capabilities for use with any virtual tape device. It provides 2:1 or better compression without sacrificing performance.

NOTE: Due to the availability of the superior hardware compression feature, software

compression is not supported on the REO 9100c. Also, hardware compression is only available for virtual tape drives; it is not an available option for disk targets.

By default, compression is enabled and is available for all virtual tape devices on the REO 9100c. The REO 9100c 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 9100 with your backup servers, verify that your network meets the minimum requirements specified in the following sections.

REO 9100/9100c 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 9100 among multiple backup servers.

To ensure optimum performance, always use the appropriate patch cables to connect the REO 9100 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 9100 to a 100BaseT 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 9100 directly to a single

application or backup server by using standard Category 5e cables without the use of a switch.

Initiators

Browser

Initiators are required to communicate with the REO 9100 targets (devices). Each backup server that will interface with the REO 9100 must be equipped with a software- or hardware-based initiator. The REO 9100 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).

The REO 9100 GUI is a Web-enabled program that requires the use of cookies, Java applets, and Java scripts. Make sure that the Web browser you use is configured to allow these items.

CHAPTER

(E-Mail) (Password)

The main steps involved in setting up the REO 9100 include:

1. Registering the unit to activate technical support.

2. Preparing by unpacking the appliance and reviewing safety guidelines.

3. Installing the appliance in a rack.

4. Inserting the disk drive carriers into the chassis.

5. Connecting the REO to the management LAN.

Register your REO 9100

Hardware Setup

Before installing your new unit, it is essential that you activate your REO warranty. Technical and warranty support are not available until this is done:

1. Go to the Overland Technical Support web site at:

http://support.overlandstorage.com/

2. Using the MEMBER LOGIN, log in to the site.

NOTE: If you are not yet a member, click the New member? link and follow the

instructions. It’s free!

Figure 2-1: Login and Sign-up Links

3. From the menu on the left, select My Products > Add or Register a

Product, and follow the on-screen instructions.

REO 9100/9100c User Guide Hardware Setup

Preparing the Array and Installation Area

WARNING: Due to the weight of each rack-mounted unit when it is fully extended, you should install units in the rack from the bottom up. Extending a unit that has empty spaces beneath it might cause the rack to tip forward or might result in personal injury. Overland recommends that at least two people support and slide the unit in the rack.

Unpacking the REO 9100

Because of its weight when loaded with disk drives, the Overland Storage REO 9100 appliance ships in two boxes.

Box one contains:

• REO chassis

• Power cords

• Rack-mount slide rail kit and hardware

• REO 9100 Documentation CD

• REO 9100 Quick Start Guide

Box two contains:

• 24 disk carriers, some or all with disk drives installed

NOTE: Depending on which version of the product that you purchased, either 12 or

24 of the carriers come with drives installed.

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.

Preparing the Installation Area

Review the following guidelines before positioning the appliance physically within your network.

• Make sure there is unrestricted air flow around the unit and through the

vents in the sides and rear of the case.

• Route external cables so that they can be connected easily without blocking

air vents or impeding air flow.

• Protect the appliance from extreme temperature and humidity. Overland

recommends that you install the unit in a clean, air-conditioned environment where water and moisture cannot enter the case of the appliance. Keep the air as free from dust as possible.

• Protect the appliance from physical shock and vibration.

• Make sure that the inlet air temperature within the rack remains below the

specified limit of 95°F (35°C).

• Keep the appliance and cabling away from sources of electrical noise since

electromagnetic fields can interfere with the signals on copper cabling and introduce errors, therefore slowing down the network.

REO 9100/9100c User Guide Hardware Setup

Bracket

Outer & Middle Rails

Front of Rack

Outside of Rack

Front Ver tical Rack Rail

Rear Vertical Rack Rail

Nuts Nuts

Nut or Nut Bar

Bracket Screw & Washer

Outside Edge

Mounting the Appliance in a Rack

Your REO 9100 appliance comes with a set of slide rails for mounting the chassis in the 19-inch rack. The REO unit has a 5U form factor. The inner rail segments are already attached to the chassis.

Installing the Rail Kit

Use these steps to install the rail kit in a square-holed RETMA rack (Figure 2-2):

NOTE: For a threaded-hole rack, omit the washers.

Figure 2-2: Outer Rail & Bracket Assembly and Positioning

1. Identify and mark the screw holes on the front and rear vertical rails of the

rack where the slide rails will be installed.

2. Loosely install rear bracket inside the rear vertical rack rail (Figure 2-3)

using two sets of screws, washers, and nuts (or bar nut) supplied.

Figure 2-3: Attached the Bracket to the Rack

3. For a standard RETMA rack, loosely attach two screws through the 9th

holes from the rear of the bracket (

Figure 2-4) using two nuts or a nut bar.

Do not tighten the screws yet.

REO 9100/9100c User Guide Hardware Setup

BracketNut Bar

Outer/Middle Rail Assembly

Outer/Middle

Rack Rail

Front Vertical

Rail Assembly

Outer/Middle

Figure 2-4: Location of Bracket Screws for Outer/Middle Rail Assembly

4. Slide the non-flange end of the outer/middle rail assembly onto screws on

rear bracket and align the flange end inside the front vertical rail to the appropriate holes.

5. Attach the outer/middle rail assembly to the front vertical rack rail

(

Figure 2-5) using two sets of screws, washers, and nuts (or a bar nut).

Figure 2-5: Attaching Outer/Middle Rail Assembly

6. Verify that the rail assemblies are installed properly and tighten the screws

holding the rail assembly to the rack.

7. Tighten the screws that secure the bracket to the outer/middle rail

assembly.

8. Repeat Steps 2–7 for the other rail assembly.

Inserting the Appliance

1. Pull out the middle slides from the front of the rack so that they lock in the

extended position (click).

REO 9100/9100c User Guide Hardware Setup

2. Using a mechanical lifter or two people, lift the appliance to its install height

and engage the inner slides mounted on the chassis with the middle slides protruding from the rack.

3. Slide the appliance in until it stops.

4. Simultaneously press both lock buttons on the inner rails and slide the

appliance in until it stops again.

5. Press the same lock buttons again and slide the appliance all the way into

the rack.

6. Slide the appliance in and out several times, ensuring that the inner and

outer slide locks engage and the

chassis does not bind against the slides. If

binding occurs:

a. Remove the appliance.

a. Loosen the screws that secure the slides to the front and the rear rails of

the rack.

b. Readjust the slide positioning as needed and retighten the screws.

c. Reinsert the appliance and verify that it does not bind.

7. Slide the appliance all the way into the rack and secure the appliance

flanges with screws (left and right side) to the rack.

Reinstalling Drive Carrier Assemblies

IMPORTANT: To maintain proper airflow and cooling, a disk drive or a blank drive carrier must be installed in every slot.

The disk drive assemblies (disks mounted in carriers) are packaged separately, which allows you to insert them into the array chassis after you have installed the chassis in the rack. Each disk carrier contains a label that identifies the slot into which you must insert it.

Figure 2-6: REO 9100 Slot Numbering

REO 9100/9100c User Guide Hardware Setup

1 - USB Ports 2 - Data Port 2 (RJ-45) 3 - Data Port 1 (RJ-45)

4 - SCSI Ports 1 5 - SCSI Port 0 6 - FC Port 1

7- FC Port 0 8 - Management Port 9- AC Power Connectors

124

678

IMPORTANT: Do not remove the drives from the drive carriers. The RAID array is preconfigured so failure to install the disks in the corresponding slots may result in

the need to create a new configuration.

To install disk carriers in chassis

1. Insert the first disk carrier into the appropriate slot in the chassis.

2. With the lever in the open position, push firmly on both sides of the carrier

to ensure that the latch and connector are fully seated.

3. Press the lever in until it clicks into the locked position.

This draws the carrier fully into the slot and seats it properly inside the chassis.

4. Repeat these steps for each disk carrier.

Attaching Cables

All cabling and power connections are located on the rear panel of your REO appliance (Figure 2-7). Connections are available for Ethernet, USB, and serial cabling. All unit cooling exhaust is handled through the rear panel.

Figure 2-7. REO 9100 Rear Panel Connections

REO 9100/9100c User Guide Hardware Setup

Once the unit is secured in the rack and the disk drives installed, you are ready to attach the cables that connect the REO appliance to your host system and power source.

1. Plug the network connection into the Ethernet port.

Using a Category 5e (or better) cable, connect Data Port 1 on the appliance to the management LAN.

2. Connect any other cables to the appropriate plugs as shown (Figure 2-7).

3. Attach the four 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 9100 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 9100 is powered down and unplug the AC cords from the

main AC power source.

2. Connect the USB cable from the UPS to the USB port on the REO 9100 back

panel.

3. Plug the AC power cords from the REO 9100 into the AC sockets on the UPS.

4. Plug the AC power cord from the UPS into a main AC power source.

5. Turn on the UPS.

CHAPTER

Powering Up the Appliance

The main steps involved in enabling power to the REO 9100 include:

1. Making sure that the disks are correctly inserted in the appliance.

2. Connecting the power cords to a power source and enabling power.

3. Shutting down the appliance.

4. Using an Uninterruptible Power Supply (UPS).

Verifying Insertion of Disks

Because your appliance is configured with two RAID 5 with Hot Spare arrays, it is important that the disks are inserted in the correct slots in the appliance.

all of the same capacity. The drives in one unit can be a different capacity than those in the other units as long as all the drives in that unit are the same size.

Make sure that the disks are seated correctly to prevent an error state during the power-on procedure. For more information, see

Assemblies” on page 2-5.

Enabling Power

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.

IMPORTANT: The REO 9100 head unit must be populated with drives that are all of the same capacity. Also, expansion units must be fully populated with drives that are

“Reinstalling Drive Carrier

IMPORTANT: All four power cords must be connected. If one of the cords is disconnected or malfunctioning, the appliance beeps continuously until the

REO 9100/9100c User Guide Powering Up the Appliance

Fans Alarm Reset Release Latch Thumbscrew HandleLED AC Socket

The REO 9100 is intended to be grounded. Ensure it is connected to earth ground during normal use.

Power Supplies

Each of the four power supply modules contain:

• A socket for an AC line cord.

• A two-color LED for indicating the status of the power supply.

• When all outputs are available, the LED becomes green.

• If the power supply fails, the LED becomes red.

• A latch with a thumbscrew 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.

An Alarm Reset switch (red push button) is located on the back panel, in the location shown in

Figure 3-1.

Figure 3-1: Enabling Power to REO 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.

REO 9100/9100c User Guide Powering Up the Appliance

Power Button

To power up the appliance:

1. Plug each of the power cords into a separate AC power source.

IMPORTANT: If power is automatically enabled when you attach the cords to

an AC power source, shut down the appliance before continuing with the setup process. For details on shutting down an appliance, see “Shutting Down the

Appliance” on page 3-4

2. To power up the REO 9100, press and hold the power button for about 1

second, which starts the power-up sequence.

The power switch is located in the top area of the front panel above the third column of disks. The power switch is a momentary contact device that needs to be held to begin the power-up sequence.

Figure 3-2: Power Button Location

After you turn the power on, the REO 9100 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 approximately 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 the REO Software” on

page 4-1.

IMPORTANT: You must leave the appliance ON while completing the

configuration process for your application and backup servers.

REO 9100/9100c User Guide Powering Up the Appliance

Shutting Down the Appliance

IMPORTANT: To ensure preservation of data on the REO 9100, you should not turn off the appliance using the power button. Always use the Shut Down option located

in the REO 9100 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 REO 9100 GUI.

To shut down the appliance via the GUI:

1. Verify that no backup/restore jobs are running.

2. In the REO 9100 GUI, under System Menu, click Maintenance.

3. On the Maintenance page, under Shut Down/Restart, click Shut Down.

4. When the confirmation message appears, click OK.

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 shutdown process.

2. Wait up to 1 minute to see if the appliance responds.

3. If the appliance does not shut down after the first attempt, repeat

Backup Power

In order to protect your data from loss due to sudden power interruption, your REO 9100 supports the use of an external UPS. The REO 9100 monitors the UPS via the USB port (reporting the charge level on the System Summary page). When the REO 9100 senses a low UPS power condition, it initiates a graceful shutdown that completes before the UPS runs out of battery power.

The LED for power will turn off after the shutdown process is finished.

Steps 1–2 a second time.

CAUTION: Pressing and holding the power button for 4 seconds or more causes an

immediate hardware-shutdown 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 REO 9100 GUI or the graceful shutdown method described earlier. If you must use the immediate hardwareshutdown method, make sure that you first stop all host- and management-serverrelated activity.

REO 9100/9100c User Guide Powering Up the Appliance

UPS Power Monitoring

When the REO appliance detects that it is connected to a UPS, it displays the 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.

• When the main AC power is interrupted and the REO is powered by the

UPS, the indicator bar turns red. The red bar and the numeric indication grow smaller as the UPS battery charge goes down.

Figure 3-3) at the bottom of the System Summary page.

Figure 3-3: System Summary Page UPS Information

• 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 charges itself up.

Behavior When Connected to UPS

A REO 9100 with a UPS works normally as long as the main AC power is supplied. When the main AC power is interrupted and the REO 9100 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 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 9100 does not restart automatically. Use the Power button on the front panel to restart the REO 9100.

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:

http://www.networkupstools.org/compat/stable.html

Figure 3-4: REO Running on UPS Power

CHAPTER

Configuring the REO Software

The main steps involved in configuring the management environment include:

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 application and backup servers, SAN for the

backup servers, or FC.

8. Installing software client drivers or storage adapters for iSCSI or FC access

on systems involved in the backup process.

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 9100, you must configure the network communication addresses. The Management Port connects the REO 9100 to the Management LAN. A workstation or computer connected to the LAN can then be used to manage the REO 9100.

IMPORTANT: The Management Port and both Data Ports must be on a separate subnets.

Logging On

When setting up your REO 9100, 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.

REO 9100/9100c User Guide Configuring the REO Software

Appliance Name

Submenu

Content Page Header

Main Menu Tabs

Buttons

(Content Page)

Help Link

Logout Link

4. In your Web browser, connect to the default IP address of 10.0.0.1.

The REO 9100 Login screen is displayed (Figure 4-2):

Figure 4-1: REO 9100 Logon Screen

5. Enter the following in case-sensitive format:

• Logon Name: Administrator

• Password: system

The REO 9100 GUI appears (Figure 4-2).

Figure 4-2: REO 9100 Default GUI Screen

REO 9100/9100c User Guide Configuring the REO Software

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.

Entering Your Network Configuration Settings

1. Verify the System tab is selected.

2. Click Network Configuration to display the option screen (Figure 4-3).

Figure 4-3: Network Configuration 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.

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 REO 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.

REO 9100/9100c User Guide Configuring the REO Software

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 GbE Data Ports.”

Configuring GbE Data Ports

Data Port 1 and Data Port 2 are GbE data ports used for block-level data transport between your backup servers and the REO 9100. Data Port 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 9100 GUI.

1 and Data Port 2 are

If you have one or two backup servers, you can connect each one directly to one of the data ports on the REO 9100. The backup servers must have a GbE port. If you have more than two backup servers, you must make these connections through a GbE switch.

NOTE: The port currently being used to access the REO 9100 cannot be configured

while in use. If you are logged into Data Port 1 via the default IP, you can configure only the Management Port or Data Port 2. To configure Data Port 1, you must be logged into the Management Port or Data Port 2.

To configure the GbE ports:

1. At the System tab, click Network Configuration.

Because you are accessing the GUI through the Management Port, those options are not changeable.

2. In the Data Port 1 section:

a. Enter an appropriate static IP address and subnet mask.

b. Click Apply.

3. 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 9100, 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 4-7.

REO 9100/9100c User Guide Configuring the REO Software

Configuring FC Data Ports

If your REO appliance is set up for FC, do the following procedure:

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.

• For topology, select Auto, Fabric/Point-to-Point (N_Port), or Loop

(NL_Port).

REO 9100/9100c User Guide Configuring the REO Software

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.

REO 9100/9100c User Guide Configuring the REO Software

Entering the System Information

1. At the System tab, click System Configuration (Figure 4-6).

Figure 4-6: Initial System Configuration Page

2. In the System Information section, enter the System Name (the default

is “REO”) and click Apply.

Enter up to 16 characters to name the appliance. You can use 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 a user name and password:

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 casesensitive.

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 highly recommended). Enter a new password

using up to 30 alphanumeric characters (do not use spaces or Ctrl-key characters).

REO 9100/9100c User Guide Configuring the REO Software

c. Retype Password. Enter the password again.

d. Click Apply.

4. In the E-mail Notification section, click Enable and enter the following

(

Figure 4-7):

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.

REO 9100/9100c User Guide Configuring the REO Software

Select Time Zone first; then, set time, or enter IP address of Time Server

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):

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. To verify that the system is configured correctly, click Test Trap.

d. Click Apply.

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.

6. In the Set Time section, select the applicable settings (Figure 4-9):

Figure 4-9: Set the Time Zone and the Time

a. Select the appropriate local Time Zone using the drop-down list and

click Apply in the Current Time Zone section.

REO 9100/9100c User Guide Configuring the REO Software

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 9100 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-31.

b. Set the time on the current appliance or via NTP server:

• To set time on this appliance: select the appropriate current time

settings; then, click Apply in the Current Date and Time section.

• To set time via NTP server: enter the IP address of the NTP

protocol server on your network; then, click Enable NTP. The Current Date and Time section displays only the current date and time with no options.

• 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.

Using RAID Setup

You can use the RAID Setup feature under the System tab to select a different RAID configuration. The REO appliance ships configured as a RAID Spare but also supports the basic RAID

In a RAID configuration, how the volumes are arranged depends on whether you are using an appliance that contains 12 or 24 physical disks, and it depends on whether those disks are 250

The appliance also contains two physical controllers. If you are using 12 physical disks, all 12 are assigned to the first controller; if you are have 24 disks, the second set of 12 disks is assigned to the second controller. If you add 12 disks to an existing 12 disk configuration, the second 12 disks are assigned to the second controller.

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 manually added. See

Capacity.”

GB, 500 GB, 750 GB, or 1 TB in size.

5 with Hot

5 configuration.

Chapter 8, “Expanding

CHAPTER

Virtual Tape Library Setup

The key feature of the REO 9100 is its ability to emulate a physical type library so 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:

1. Determining the type of RAID Set you want to use.

2. Adding a virtual tape library and drive type that you want to emulate.

3. Setting the target information.

4. Identifying the initiators.

5. Making a backup copy of the information so that your configuration is

preserved.

Adding a VTL

NOTE: Up to six (6) VTLs can be created on each REO appliance running Protection OS

version 5.0.x.

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

REO 9100/9100c User Guide Virtual Tape Library Setup

2. Make the necessary changes to the fields as follows:

a. In the Descriptive Name section, do one of the following:

• Leave the Automatic check box selected to have the REO

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.

• Clear the check box. In the text box that appears to the right, type a

name using up to 32 alphanumeric characters.

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 drive and 30 cartridges.

• Select NEO 4100 to create two drives and 60 cartridges.

• Select NEO 4200 to create four 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.

• Select LTO-4 to create drives with DVT Capacity Limit of 800GB.

• Select DLT-7000 to create drives with DVT Capacity Limit of 35GB.

This selection also reduces the default number of cartridges to 26.

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.

• If you want the REO Protection OS to specify the first bar code label

and automatically generate subsequent labels, leave the Automatic check box selected.

• If you want to use your own naming convention, you can clear the

check box and, in the text box that appears to the right of the check box, type the seed code using six alphanumeric characters. Lowercase letters are converted to uppercase when the VTL is created.

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.

REO 9100/9100c 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 V TL.

For example, you might use REA000 as the seed for a VTL on REO appliance A, REB000 for a VTL on REO appliance B, REC000 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:

Drive Type Characters Appended

LTO-2 L2

LTO-3 L3

LTO-4 L4

DLT7000 D7

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 REO 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 200 GB, the same capacity as an LTO-2 cartridge. If you change the drive type, the DVT Capacity Limit default also changes.

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.

REO 9100/9100c User Guide Virtual Tape Library Setup

3. Click Create. A progress message appears regarding the time required for

REO to create the VTL.

When the new VTL is created, the VTL Summary screen (Manage tab) is displayed (Figure 5-2 on page 5-4).

Figure 5-2: 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. Click the appropriate VTL Summary Modify button under Target

Configuration to view the information (

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.

Figure 5-3).

REO 9100/9100c User Guide Virtual Tape Library Setup

Figure 5-3: Modify Target Configuration Screen

NOTE: If your REO does not support Fibre Channel, the FC LUN column

displays n/a.

3. For a REO 9100 basic unit without hardware compression, if your backup

software supports a hardware compression feature for use with tape and you want to emulate that feature, select the software Compression check box.

For optimal backup performance, leave this check box cleared; to maximize the backup storage capacity, select this check box. This option applies to all virtual cartridges on the VTL.

NOTE: On REO 9100c models, the box is checked and grayed-out.

4. If necessary, make any changes to the VTL Settings:

• DVT Capacity Limit

• Drive Count

• Cartridge/Slot Count

• Descriptive Name

• Bar Code String Width

REO 9100/9100c User Guide Virtual Tape Library Setup

NOTE: The bar code seed cannot be changed once the VTL is created.

5. 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.

6. 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.

7. 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

NOTE: You can assign up to 16 initiators to each VTL device.

Now that you created a VTL, you assign initiator access to it. Initiator access to the devices (targets) is established via initiators. You can assign up to eight initiators to each disk 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.

2. Click the appropriate Current VTL Summary Modify button under

Initiator Configuration to view the information (

Figure 5-4 on page 5-7).

REO 9100/9100c User Guide Virtual Tape Library Setup

Figure 5-4: Modify Initiator Configuration Screen

3. Click Add Initiator (top left).

4. In the Select Connection Type field, click iSCSI or, if available, FC (iSCSI is

the default connection type).

5. Depending on the connection type selected, follow the appropriate

procedure:

• For an iSCSI initiator (Figure 5-5):

Figure 5-5: Add Initiator Screen with iSCSI Selected (default)

• Select an existing initiator from the Initiator Names drop-down list.

REO 9100/9100c User Guide Virtual Tape Library Setup

NOTE: If you use the Initiator Names list to select an existing initiator, there is

only one name in the list, and you are using Internet Explorer on a Windows 2000 system, you might 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 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 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 5-6):

Figure 5-6: Add Initiator Screen with FC Selected

• Select an existing initiator from the Initiator Names drop-down list.

• 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.

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.

REO 9100/9100c User Guide Virtual Tape Library Setup

7. Click Commit to create the initiator.

You are returned to the Modify Initiator Configuration screen.

8. If you want to add another initiator, repeat Steps 3–7.

9. After you are done creating initiators, click Commit on the Add Initiator

Configuration screen.

Displaying VTL Status

To view the status of the VTL:

1. Under the Manage tab, select VTL Summary.

2. Click the appropriate Current VTL Summary Status button under Display

to view the status information (

Figure 5-4 on page 5-7).

Figure 5-7: VTL Status Display

The VTL Status page displays a Device Summary and a Cartridge Map.

REO 9100/9100c User Guide Virtual Tape Library Setup

NOTE: If your device does not support Fibre Channel, n/a is displayed in the FC LUN

column.

3. To return to the VTL Summary page, click Go To Library Summary.

Backing Up the Appliance Configuration

The 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.

For details on backing up the REO appliance configuration settings, refer to

“Making a Backup Copy of the Configuration File” on page 6-15.

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).

REO 9100/9100c User Guide Configuring Virtual Devices

Creating Standalone Disk Devices

1. Under the Create tab, click Disk (Figure 6-1 on page 6-2).

Figure 6-1: Create Disk Screen

2. Accept the default or enter a new Size of Device.

3. Accept the default or enter a new iSCSI Target Name.

4. Click Create.

The Standalone Device Summary screen is displayed.

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.

REO 9100/9100c User Guide Configuring Virtual Devices

3. To expand the disk size:

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 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 9100 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 9100 disk drive or drives.

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 9100 disk 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 9100, Overland strongly recommends that you set this value to 60 seconds.

REO 9100/9100c User Guide Configuring Virtual Devices

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: http://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 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.

• 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 (www.overlandstorage.com) for Application Notes related to your specific backup software.

• If you enable software compression on the basic REO 9100, be aware that

various factors (such as the speed of your backup server, source devices, or network) can significantly affect performance. Additionally, the existing state of the files you are backing up (for example, whether the files are already compressed) can affect the level of compression that might be achieved. Consider these factors when you determine the applicable settings for your backup environment.

REO 9100/9100c User Guide Configuring Virtual Devices

• 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

2. Select the Drive Type to emulate from the Drive Type drop-down list:

LTO-2, LTO-3, LTO-4, or DLT7000.

3. If software compression is desired on a basic unit, check Enable Tape

Compression. (Option is grayed out with hardware compression.)

4. 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.

5. Accept the default or enter a new iSCSI Target Name.

6. Click Create.

The Standalone Device Summary screen is displayed.

REO 9100/9100c User Guide Configuring Virtual Devices

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, LTO-4, or DLT7000.

3. Accept the default or enter a new Size of Device.

4. If software compression is desired on a basic unit, check Enable Tape

Compression. (Option is grayed out with hardware compression.)

5. Accept the default or enter a new iSCSI Target Name.

6. Click Create.

The Standalone Device Summary screen is displayed.

Modifying Standalone Tape Devices (Not Multisite)

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).

Figure 6-7: Standalone Device Summary Screen

2. To change the iSCSI target name:

a. Click Modify.

b. Enter a new iSCSI target name.

REO 9100/9100c User Guide Configuring Virtual Devices

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.

Modifying Multisite Tape Devices

1. Under the Manage tab, click Standalone Device Summary (Figure 6-7 on

page 6-6).

NOTE: If you enabled compression during transfer, the device appears in Italics in the

Device Type column on the Standalone Summary Page shown on page 6-6.

The size of a device reflects the space that is available on a disk.

2. To change the multisite device parameters, click Modify (Figure 6-8 on

page 6-8).

REO 9100/9100c User Guide Configuring Virtual Devices

Figure 6-8: Modify Multisite Device Screen

3. Modify the multisite device in one or all of the following ways:

a. Enable Tape Compression: Select the check box to enable, clear the

check box to disable.

b. Maximum Duration of Job: Enter a larger or smaller value to increase

or decrease the number of hours that this job runs before cancellation.

c. Compress During Transfer: Select the check box to compress the data

during the mirroring process and store compressed data on the central appliance; clear the check box to send without compression.

d. Connection Time-Out: Enter a larger or smaller value to increase or

decrease the number of minutes before a connection times out.

e. WAN Bandwidth Management: Enter a larger or smaller value to

increase or decrease the amount of the I/O delay during data transfer.

f. Job Schedule Information: Select the appropriate drop-down lists to

change the mirror type, or change the schedule.

4. Click Apply.

REO 9100/9100c User Guide Configuring Virtual Devices

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 6-7).

Figure 6-9: 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.

REO 9100/9100c User Guide Configuring Virtual Devices

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 6-7).

Figure 6-10: 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

To use the Multi-SitePAC application, you must establish a network route through which the devices communicate. 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.

REO 9100/9100c User Guide Configuring Virtual Devices

Figure 6-11: Adding a Route on the Static Route Configuration Page

2. Enter the subnet mask value associated with this route entry into the

Subnet Mask field (i.e.,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.

Add Multisite Initiator Access

An iSCSI multisite initiator establishes communication between the central appliance and the remote appliance in a Multi-SitePAC application. Create the initiator access to set up communication before you create the multisite tape device.

IMPORTANT: A route must exist between the remote REO data port and the central

REO data port before you create initiator access. For information on setting up a route, see “Configuring a Static Route” on page 6-10.

1. Under the Create tab, click Multisite Initiator Access (Figure 6-12).

NOTE: An existing iSCSI Initiator cannot be used as a Multisite initiator on the same

appliance. Multi-SitePAC is not available for appliances that feature hardware compression (REO 9100c).

REO 9100/9100c User Guide Configuring Virtual Devices

Figure 6-12: Standalone Device Add iSCSI Initiator Screen

2. In the iSCSI Initiator Name of Remote Host 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.

3. In the IP Address on Remote Appliance for Control Interface field,

enter the IP address of the port on the remote appliance that the central appliance uses for communication with it.

The central appliance uses this address to configure multisite tape devices and to instruct any multisite jobs to start or stop.

4. In the IP Address on Central Appliance for Data Transfer field, select

the IP address (port) on the central appliance that receives multisite data from the remote appliance.

5. Click Create to create the initiator.

The Standalone Device Summary screen is displayed.

6. To add another multisite initiator, repeat Steps 1–5.

Create Multisite Tape

The multisite tape device is a Dynamic Virtual Tape (DVT) device that is created on both the central and remote appliances in a Multi-SitePAC application. Multisite uses DVTs to allow the data, and its transfer, to expand over time.

NOTE: Currently. you can create only LTO2 multisite tape devices.

REO 9100/9100c User Guide Configuring Virtual Devices

Creating a Multisite Tape Device

Each central/remote pair can be configured for 10 multisite tape devices. To set up the backup job from the remote appliance to the central appliance via a multisite tape device:

1. Under the Create tab, click Create Multisite Tape.

Figure 6-13. Create Multisite Tape Page with Job Schedule Information

2. In the Multisite Initiator field, select one of the currently configured

multisite initiators from the drop-down list.

3. Select the Enable Tape Compression check box to maximize backup

storage capacity; otherwise, for optimal backup performance, leave the check box cleared.

NOTE: Your backup software should support a hardware compression feature for

use with tape.

4. In the Dynamic Tape Maximum Size field, enter the maximum size (in

GB) allowed for this tape device. To use the maximum space available, leave the default entry, 0.

NOTE: To change the maximum size at a later date, you must either delete the

device and re-create it using the desired size, or create an additional device that uses the desired size.

5. In the iSCSI Target Name field, enter a valid iSCSI name for this device,

or accept the default. The name can have a maximum length of 233 alphanumeric characters, and can include periods (.), dashes (–), and colons

(:).

6. In the Maximum Duration of Job field, enter the number of hours

to 168) the job can process before it is canceled.

REO 9100/9100c User Guide Configuring Virtual Devices

7. Clear the Compress During Transfer check box (default is selected) to

disable compression during mirroring.

Select the check box to store the data in a compressed state on the central appliance and compress it during transfer.

8. Enter the amount of time (from 5 to 10080 minutes) before a connection

time-out in the Connection Time-Out field.

A connection time-out is a break in the connection between the Remote and central appliances. This feature determines the amount of time that elapses before the job is officially timed out and canceled.

9. Enter the amount of bandwidth (from 0 to 999) required in the WAN

Bandwidth Management field.

This option limits the amount of bandwidth used during data mirroring between the appliances. Increase this value to introduce a delay between the data blocks transmitted by the remote appliance. The actual data rate you achieve depends on the speed of the network connection.

Providing Job Schedule Information

Set up the job schedule:

1. Select the Mirror Type from the drop-down list:

a. Select Manual to start the job from the Job Manager page. Other

scheduling options are not needed.

b. Select Schedule to specify the frequency and automatic start time for

this backup job.

2. If needed, select the Frequency from the drop-down list:

a. Select Daily to schedule the job to backup each day.

If selected, select when the job starts from the Start Time drop-down lists.

b. Select Weekly to schedule the job once a week on a specified day.

If selected, select the day on which the job runs from the Day of the Week drop-down list, and a Start Time.

3. Click Create to create the multisite tape, and click OK when the

confirmation screen appears.

4. To create another multisite tape, repeat the steps in “Creating a Multisite

Tape Device” on page 6-13 and Steps 1–3, above.

REO 9100/9100c User Guide Configuring Virtual Devices

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 6-14: System Maintenance Page

2. In the Save/Restore Appliance Configuration section (Figure 6-14),

click Save.

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 6-15) is displayed alerting you to the time it will take to

back up the files. Click OK to continue (or Cancel).

Figure 6-15: Backup Time Message

REO 9100/9100c User Guide Configuring Virtual Devices

4. A second message (Figure 6-16) is displayed showing the name of the backup

file. Click Continue.

Figure 6-16: 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 9100 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.

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 servers.

• Looking at how dynamic tape devices work.

• Checking communication with other systems or appliances.

• Refreshing the REO 9100 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 9100 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

9100 GUI automatically logs you off from the first system.

• After an hour of inactivity, the REO 9100 GUI automatically logs you off the

system.

• If another user logs on to the REO 9100 GUI, you are automatically logged

off.

To log into REO 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 9100.

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 9100 GUI is displayed.

IMPORTANT: Overland recommends you change the user name and password.

REO 9100/9100c User Guide Working With the Appliance

Data Ports

FC Ports

Logging Off the GUI

To log off the REO 9100 GUI, click Logout in the upper right corner.

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 9100 and the backup servers.

Connecting the REO Ports

If you are using iSCSI connectivity, iSCSI initiators are required on each backup server being connected so it can communicate with the iSCSI targets (devices) on the REO 9100. Similarly, FC initiators are required for FC connectivity. Use the following information to connect the REO 9100 to your backup servers or SAN (

Figure 7-1).

Figure 7-1: Data and FC Ports

NOTE: You do not need TOE-equipped (TCP Off Load 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 (right) directly to a backup server.

• For additional connectivity, connect Data Port 2 (left) directly to a

second backup server.

• If connecting to multiple backup servers, use a GbE switch connected

to either REO data port.

REO 9100/9100c User Guide Working With the Appliance

• For FC connectivity:

• Connect FC Port 0 (bottom) directly to a backup server.

• For additional connectivity, connect FC Port 1 (top) directly to a

second backup server.

• Connect the Fibre Channel Ports (Port 0, bottom; Port 1, top) on

the rear of the appliance to your FC switch or hub.

2. Install the desired software initiator or storage adapter on the backup

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 devices), see the manufacturer’s documentation. You can also check the Overland Web site (www.overlandstorage.com) for Application Notes on initiators.

3. For additional backup systems connecting with the REO appliance, repeat

Step 2.

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 9100 reduces the capacity of the device to 1 back into a virtual storage-pool (VSP).

When the backup software reaches an early warning (EW) state (EW is reached when less than 100 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.

GB. The appliance then releases the unused storage

MB of space remains on the current device), the REO 9100

REO 9100/9100c User Guide Working With the Appliance

• 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 Systems

The Maintenance page includes a section that lets you check network connectivity with any system, appliance, and so on, that has an IP address. The REO 9100 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).

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 REO 9100 GUI displays a message that indicates whether the ping command succeeded or failed.

3. To proceed, click Continue.

REO 9100/9100c User Guide Working With the Appliance

Managing Multi-SitePAC Jobs

The Job Manager displays information about multisite jobs on its Job Monitor page. Use the information to monitor a job’s state, to modify a job, or to start and stop multisite jobs. Job states can be Hold (terminated, or not running), Active (running), or None (manual start).

Figure 7-3: Multisite Job Monitoring Page

The Job Monitoring page displays each multisite job’s name, type, schedule, and state. The schedule lists a specific start time, or lists that the job is manual. If manual, you start the job from this page.

NOTE: If you are monitoring a number of remote jobs, the screen may occasionally

report a “None” state when the job is actually running. If you notice this, wait for the screen to refresh the job state information.

To view information about a specific multisite job:

1. Click Manage > Job Manager to view the currently set up multisite jobs.

2. Click the Job Name link to view job details.

Information about the named backup job is displayed. Click Job Manager, or your Back button, to return to the Job Manager page.

To start or stop a specific job:

1. Click Start in the same row as the named job link to start the job, and

click OK to confirm the start.

2. Click the Job Name link to view job information about the currently

running job.

3. When you are finished, click Job Manager or the Back button to return to

the Job Manager.

4. If needed, click Stop in the same row as the named job link to terminate the

job, and click OK to confirm job termination.

You can modify certain parameters of the multisite job, but you cannot modify the job’s name, drive type, or other identifying characteristics.

You can make changes to the following job parameters:

• Tape compression (enable/disable)

• Job duration

• Data compression during transfer (and subsequent storage)

• Connection timeout

• WAN Bandwidth Management

• Type of schedule (Manual, or Automatic via Schedule)

• Scheduling day and start time

REO 9100/9100c User Guide Working With the Appliance

Figure 7-4: Modify Multisite Device Page

To modify a multisite job:

1. Click the Schedule in the same row as the named job link to view the

Modify Multisite Device page.

2. Modify necessary parameters; then, click Apply.

3. Click OK to confirm the job modification.

When the Job Monitoring page is displayed, your changes appear.

Refreshing the GUI Display

The REO 9100 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 browser to update the page.

Reviewing How the Disk Drives are Numbered

Physical numbering (Figure 7-5) begins with the disk in the upper-left corner (disk 00) and moves from left to right, top to bottom.

REO 9100/9100c User Guide Working With the Appliance

Data Port 1Data Port 2Temperature PowerFans

Figure 7-5: Physical Disk Drive Numbering

The Protection OS GUI disk numbering (Figure 7-5) 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.

Understanding What the LEDs Represent

Front Panel LEDs

The front of the appliance includes several LED lights (Figure 7-7). 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.

Each disk drive (Figure 7-8) has two LEDs: one for power and one for activity.

Figure 7-6: GUI Disk Drive Numbering

Figure 7-7: Front Panel LEDs

REO 9100/9100c User Guide Working With the Appliance

Power To Disk Disk Activity

1 - Data Ports Activity 2 - Data Ports Speed 3 - FC Ports Activity/Fault

4 - FC Ports Speed 5 - Mgmt Port Activity/Link 6 - Mgmt Port Speed (see table)

13452 6

Figure 7-8: Disk Drive LEDs

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.

Figure 7-9. REO 9100 Port LEDs

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 Blinking: GREEN (any)

REO 9100/9100c User Guide Working With the Appliance

FC Ports 0&1 LEDs Activity/Fault LED Link Speed LED

Loss of Sync, no Link Constant: AMBER Any color

Fault Blinking: AMBER Any color

1 GBit/s Link OFF Constant: AMBER

1 GBit/s Activity (date transfers) Blinking: GREEN Constant: AMBER

2 GBit/s Link OFF Constant: GREEN

2 GBit/s Activity (date transfers) Blinking: GREEN Constant: GREEN

4 GBit/s Link OFF Constant: BLUE

4 GBit/s Activity (date transfers) Blinking: GREEN Constant: BLUE

Relocating (Moving) an Appliance

To relocate an appliance:

IMPORTANT: To ensure preservation of data on the REO 9100, you should not turn

off the appliance using the power button; you should use the Shut Down option in the REO 9100 GUI.

1. In the REO 9100 GUI, under the System tab, click Maintenance

(Figure 7-10).

Figure 7-10: System Maintenance Screen

2. Under Shut Down/Restart, click Shutdown.

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.

REO 9100/9100c User Guide Working With the Appliance

1. Press to the right, as indicated by the arrow on the button

2. Use the lever to pull out the carrier

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 7-6.

a. Press the blue button on the front of the carrier to the right.

b. Use the lever to pull the carrier out of the slot.

c. Repeat Steps a–b for the remaining disk carriers

Figure 7-11: Disk Carrier Removal

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.

For more information, see “Reinstalling Drive Carrier Assemblies” on

page 2-5.

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 2-6.

11. Attach the power cords to the appliance and plug the cords in to an AC

power source.

If the appliance starts in an error state (that is, you are unable to access the REO GUI), use the steps outlined under

“Shutting Down the Appliance” on page 3-4 to

shut down the appliance. Then turn the appliance on by pressing and holding the power button for 1

second.

CHAPTER

This chapter explains how to complete the following:

• Add up to four expansion arrays to expand the performance capacity.

• Moving or removing expansion arrays.

• Add the 12-disk upgrade kit to an existing 12-disk configuration.

IMPORTANT: To ensure data integrity, back up the data on the appliance before you perform any of these procedures.

Attaching Expansion Arrays

Expanding Capacity

Additional storage can be added by installing one or more REO 9100 Expansion Array to a REO 9100 or REO 9100c head unit.

CAUTION: If you intend to attach more than two expansion arrays, you must attach

only two of them to the REO (one to each channel) and let the REO recognize them before connecting the additional expansion arrays.

1. Power off the REO head unit (and any expansion arrays attached).

2. Use the installation instructions provided with the new expansion array to

install the unit in the rack, attach the cables, and enable power to it (.

IMPORTANT: It is critical to the process that you set up the hardware and enable power to the expansion array before you enable power to the

REO 9100 head unit.

REO 9100/9100c User Guide Expanding Capacity

PSU PSU

Controller Module

Cooling Modules

Host Ports

Ethernet

Port

Serial Communication

(COM) Ports(SCSI Connectors)

LED

Indicators (5)

Figure 8-1: Rear Panel, REO Expansion Array with Controller Module

3. If a second expansion array is being added, repeat Step 2.

4. Power on the head unit.

Wait while the system reboots.

5. If additional expansion units are being added, repeat Steps 1–4.

6. Log on to the GUI, and under the System tab, click Disk Management

(Figure 8-2).

REO 9100/9100c User Guide Expanding Capacity

Figure 8-2: Disk Management Screen

7. To add all the newly installed storage, including any Free drives in the head

unit (

“Expanding Capacity by Adding Disk Drives” on page 8-4), 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.

Removing Expansion Arrays

Should it become necessary to remove one or more expansion arrays (such as moving them to another REO appliance), they can be removed one at a time.

IMPORTANT: All data, devices, and settings will be deleted during this process.

1. Under the System tab, click RAID Setup.

2. With RAID 5 with Hot Spare selected, click Submit.

Wait while the RAID sets are deleted on the expansion units and a new RAID set is recreated on the head unit.

REO 9100/9100c User Guide Expanding Capacity

3. Log back on to the GUI and under the System tab, click Disk Management.

4. Click Remove Expansion on the title bar of the unit being removed

(

Figure 8-3).

Wait while the system resets and then shuts down.

Figure 8-3: Remove Expansion Button

5. It is now safe to disconnect and remove the appropriate expansion array.

6. If more expansion arrays are being removed, repeat Steps 4–5 for each

array.

If attaching them to a different REO head unit, refer to “Attaching Expansion

Arrays” on page 8-1.

Expanding Capacity by Adding Disk Drives

If you initially purchased a REO appliance with only 12 disks and subsequently purchased the upgrade for an additional 12 disks, complete the following steps to install the additional disks.

CAUTION: Before proceeding, Overland Storage strongly recommends that you

back up the data on the appliance. While it is possible to perform the procedure without shutting down the appliance, Overland Storage strongly recommends that you shut down the appliance after backing up the data. See “Shutting Down the

Appliance” on page 3-4 for information.

REO 9100/9100c User Guide Expanding Capacity

1. Make sure there are no active I/O streams to the appliance.

2. Remove the first empty disk carrier (#12) by pressing the button on the front

of the carrier and using the lever to pull out the carrier (

Figure 8-4: Disk Drive Numbering

Figure 8-4).

3. If the new disk carrier (which contains a disk) is not labeled with a slot

number, use a blank label from the accessory kit to label the new carrier with the number 12.

Tip: Use a permanent marker to label the carrier.

4. Insert the new disk carrier (#12) into the applicable slot on the appliance,

and close the disk carrier.

a. Make sure the lever is in its fully extended, open position.

b. Press the right side of the carrier into the slot.

c. Press the lever in until it locks.

Pressing the lever in draws the carrier fully into the slot and seats it.

5. Repeat Steps 3–4 for each new disk carrier, labeling them in order, until all

12 additional disk drives are seated in the appliance.

6. If your appliance is shut down, power it up: press and hold the power button

for about 1 second to start the power-up sequence (see

“To power up the

appliance:” on page 3-3).

7. Under the System tab, click Disk Management and verify (Figure 8-5 on

page 8-6) all the new disks are marked Free.

If any show Empty, remove and reseat the disk.

REO 9100/9100c User Guide Expanding Capacity

Figure 8-5: System Disk Management Screen Showing New Disks

8. To add all the newly installed drives, click Add New Storage.

CHAPTER

Hardware Compression

IMPORTANT: This chapter provides information about the hardware compression feature that is only available with the REO 9100c appliance.

The REO 9100c comes with special data compression hardware that 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: Due to the availability of the superior hardware compression feature, software

compression is not supported on the REO 9100c. Also, hardware compression is only available for virtual tape drives; it is not an available option for disk targets.

Using Compression

By default, compression is enabled and is available for all virtual tape devices. The REO 9100c 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

If hardware compression is enabled, the Device Type name is displayed in italics on the Standalone Device Summary screen ( Initiator Summary screen (Figure 9-2).

Figure 9-1) and the Standalone

REO 9100/9100c User Guide Hardware Compression

Figure 9-1: Device Type shows Compression Enabled (by using Italics)

Figure 9-2: Device Type shows Compression Enabled (by using Italics)

Also, when hardware compression is enabled, the check box on the Modify VT Device or Modify DVT Device screen is checked but grayed-out (

Figure 9-3: Compression Check Box (Grayed Out Permanently)

Figure 9-3).

REO 9100/9100c User Guide Hardware Compression

Multi-SitePAC is not supported on the REO 9100c. A note is displayed on System Summary screen (

Figure 9-4) and the Maintenance screen (Figure 9-5).

Figure 9-4: System Summary Screen Multi-SitePAC Note

Figure 9-5: Maintenance Screen Multi-SitePAC Note

Also, the check box on the VTL Modify Target Configuration screen is checked but grayed-out when hardware compression is enabled (

Figure 9-6).

REO 9100/9100c User Guide Hardware Compression

Figure 9-6: VTL Modify Target Configuration Screen

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.

REO 9100/9100c User Guide Hardware Compression

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), 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.

Enabling/Disabling Compression

From the host’s perspective, the operation for either software or hardware compression is the same. The SCSI Mode Select command changes the Mode CompressionEnable setting. Because the host handles all compression options, the same options in the REO GUI are shown grayed-out to provide a visible status without interfering with the host system.

APPENDIX

Alerts

Basic Troubleshooting

As you troubleshoot the appliance, keep the following guidelines in mind:

• Always use the GUI Shutdown/Restart option to shut down the appliance,

NOT the appliance power button, to prevent data stream disruption.

• Never remove the chassis cover.

• If an expansion unit does not work, make sure that all connections are

secure.

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:

If you use the messaging option, an alert is sent via e-mail or SNMP (or both) in the following situations.

<system name> Chassis S/N: <chassis serial number> - <event description>

REO 9100/9100c 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: <REO 9100serialNumber>. SNMP test trap generated from the REO 9100 GUI interface

ALERT_DYNAMIC_ TAPE_CAPACIT Y_SAFE

ALERT_DYNAMIC_ TAPE_CAPACIT Y_ CRITICAL

ALERT_DYNAMIC_ TAPE_CAPACIT Y_ WARNING

ALERT_GENERAL_ CAPACITY

ALERT_RAID_UNIT_ ADDED

ALERT_RAID_UNIT_ REMOVED

Device Event, Unit SN: <REO 9100serialNumber>.

Storage Pool Event, Unit SN: <REO 9100serialNumber>.

ALERT: RAID UNIT ADDED Server Name: <SystemName>

ALERT: RAID UNIT REMOVED Server Name: <SystemName>, Serial

Server Name: <SystemName>, Serial Number: <REO 9100serialNumber>. Remaining Capacity Level: Safe

Server Name: <SystemName>, Serial Number: <REO 9100serialNumber>. Remaining Capacity Level: Critical

Server Name: <SystemName>, Serial Number: <REO 9100serialNumber>. Remaining Capacity Level: Warning

Server Name: <SystemName>, Serial Number: <REO 9100serialNumber>. Safe level Alert: Percent used: <percentage>, Tot a l Capacity (G B ): <capacity>

Available Capacity (GB): <capacity

, Serial Number: <REO 9100serialNumber>. Controller <number>, <HOTSPARE, RAID5> PU:<number> ADDED

Number: <REO 9100serialNumber>. Controller <number>, <RAID5> PU:<number> REMOVED

ALERT_RAID_UNIT_OK ALERT: RAID UNIT OK Server Name: <SystemName>, Serial

Number: <REO 9100serialNumber>. Controller <number>, <RAID5> PU:<number> OK

ALERT_RAID_UNIT_ INITIALIZING

ALERT_RAID_UNIT_ VERIFYING

ALERT_RAID_UNIT_ DEGRADED

ALERT: RAID UNIT INITIALIZING

ALERT: RAID UNIT VERIFYING Server Name: <SystemName>, Serial

ALERT: RAID UNIT DEGRADED Server Name: <SystemName>, Serial

Server Name: <SystemName>, Serial Number: <REO 9100serialNumber>. Controller <number>, <RAID5> PU:<number> INITIALIZING

Number: <REO 9100serialNumber>. Controller <number>, <RAID5> PU:<number> VERIFYING

Number: <REO 9100serialNumber>. Controller PU:<number> DEGRADED

REO 9100/9100c User Guide Basic Troubleshooting

SNMP Trap ID E-Mail Subject E-Mail Body and SNMP Trap Description

ALERT_RAID_UNIT_ REBUILDING

ALERT_RAID_UNIT_ INOPERABLE

ALERT_RAID_UNIT_ INITIALIZATION_ COMPLETE

ALERT_RAID_UNIT_ VERIFICATION_ COMPLETE

ALERT_RAID_UNIT_ REBUILDING_COMPLETE

ALERT_HOT_SPARE_DISK_C ONDITION

ALERT_HOT_SPARE_DISK_P RESENT

ALERT_HOT_SPARE_DISK_N OT_PRESENT

ALERT: RAID UNIT REBUILDING

Server Name: <SystemName>, Serial Number: <REO 9100serialNumber>. Controller <number>, <RAID5> PU:<number> REBUILDING

ALERT: RAID UNIT INOPERABLE

Server Name: <SystemName>, Serial Number: <REO 9100serialNumber>. Controller <number>, <RAID5> PU:<number> INOPERABLE

ALERT: RAID UNIT INITIALIZATION COMPLETED

Server Name: <SystemName>, Serial Number: <REO 9100serialNumber>. Controller <number>, <RAID5> PU:<number> INITIALIZATION COMPLETED

ALERT: RAID UNIT VERIFICATION COMPLETED

Server Name: <SystemName>, Serial Number: <REO 9100serialNumber>. Controller <number>, <RAID5> PU:<number> VERIFICATION COMPLETED

ALERT: RAID UNIT REBUILD COMPLETED

Server Name: <SystemName>, Serial Number: <REO 9100serialNumber> Controller <number>, <RAID5> PU:<number> REBUILD COMPLETED

ALERT: HOTSPARE DISK CONDITION

Server Name: <SystemName>, Serial Number: <REO 9100serialNumber>. Controller <number>, HOTSPARE

<REMOVED, ACTIVATED, FAILED>

ALERT: HOTSPARE PRESENT Server Name: <SystemName>, Serial

Number: <REO 9100serialNumber>. Controller <number>, HOTSPARE PRESENT

ALERT: HOTSPARE NOT PRESENT

Server Name: <SystemName>, Serial Number: <REO 9100serialNumber>. Controller <number>, HOTSPARE NOT PRESENT

REO 9100/9100c 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-AGENTMIB::nsNotifyShutdown) Uptime: 17:54:44.69

Restarting snmpd (issuing service snmpd restart) generates both of the preceding traps.

nsNotifyRestart Modifying the SNMP configuration parameters through the REO 9100 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-SNMPAGENT-MIB::nsNotifyRestart) Uptime: 0:02:58.05

REO 9100/9100c 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 = "" SNMPv2SMI::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 linkup 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

link-down 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

REO 9100/9100c User Guide Basic Troubleshooting

Using the Log Files

The REO 9100 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. When the maximum log file size is reached, previous information is deleted so that new information can be added.

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 confirmation message, 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

REO 9100/9100c User Guide Basic Troubleshooting

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 use the original tgz extension.

5. After the file is saved, the 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 support.

Tip: To view a file on a Windows system after you have downloaded it, Overland

recommends that you use WordPad, because it displays the configuration information in an easy-to-use format (see Figure A-3 on page A-7).

Figure A-3: Log File Displayed in WordPad

6. Use your e-mail application to forward the tgz file to:

support@overlandstorage.com

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.

REO 9100 Does Not Start Correctly

To determine why the appliance does not start, use the GUI to restart the REO

9100. For information on restarting the appliance even if you do not have access to the GUI, see

If this does not solve the problem, contact Customer Support at Overland. For contact information, see

“Shutting Down the Appliance” on page 3-4.

“Customer Support” on page G-1.

REO 9100/9100c User Guide Basic Troubleshooting

Unable to Log On to the GUI

If you are unable to log on to the REO 9100 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 incorrectly entering the logon name and password.

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 REO 9100 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

next 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, do the following:

1. Launch Internet Explorer.

2. In the Tools menu, click Internet Options.

3. On the Privacy tab, move the slider to Medium (or lower).

4. To save your changes, click OK.

Internet Explorer Does Not Redirect from IP Address on Windows Server 2003

If you access the REO 9100 GUI using Internet Explorer running on Windows Server 2003, you might see a blank screen after you enter a valid IP address for the REO 9100 to which you are trying to connect.

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.

REO 9100/9100c User Guide Basic Troubleshooting

GUI Stops Responding or Displays a Refresh Error

When you are working in the REO 9100 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 REO 9100 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 REO 9100 GUI returns, use the Disk Management page to

check the status of each volume, and then take

• If the status is INOPERABLE, complete the steps outlined under

“Troubleshooting a Disk Drive Problem” on page A-15.

• If the status is REBUILDING (the system used the Hot Spare to replace

a failed disk in a RAID 5 volume), replace the disk that the system identified as bad.

• If the status is OK, resume normal operation. If you are using RAID 5,

you can also execute a Verify to ensure that the volume is functioning correctly.

3. If access to the REO 9100 GUI does not return, shut down the appliance

using the steps outlined under 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.

the applicable action.

“Shutting Down the Appliance” on page 3-4,

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-4), click Custom Level.

REO 9100/9100c User Guide Basic Troubleshooting

Figure A-4: Internet Options Security Tab

4. In the Scripting section (Figure A-5), under Scripting of Java applets,

select Enable, and click OK.

Figure A-5: 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.

REO 9100/9100c User Guide Basic Troubleshooting

4. Select the Enable JavaScript check box (Figure A-6), and click OK.

Figure A-6: 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 9100c with hardware compression, the hardware

compression card might have failed.

Unexpectedly Logged Off

When you are using the REO 9100 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.

REO 9100/9100c User Guide Basic Troubleshooting

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.

To troubleshoot a disk access problem:

1. Make sure that the appliance is turned on and that all cables are correctly

connected.

2. Make sure that you can view other disks from the same initiator.

If not, there might be a problem with a cable or the Ethernet connection.

3. Make sure that you can view the targets (REO 9100 devices) from the

initiator.

a. Log on to the GUI.

b. In the left pane, on the System Menu, click Disk Management.

c. Verify that the Status of each volume is OK (Figure A-7), which

indicates that the target is functioning correctly.

Figure A-7: Disk Management Screen

Perpetual Loop of Audible Alerts on the Appliance

On startup, the appliance might reach an error state and begin an endless loop of audible alerts. The pattern (2 beeps separated by a 1-second delay) repeats every 4

seconds.

If the REO 9100 reaches this error state, turn the appliance OFF and then back ON again.

REO 9100/9100c User Guide Basic Troubleshooting

The cause of this error state might also be a LAN cable is not connected to the Management Port.

Disabling the Audible Alarm on the Appliance

If a power supply or fan fails or detects an issue with the appliance, an audible alarm sounds. If you do not have the spare component needed to correct the situation (for example, if you need to replace a power supply), press the small mute button on the front of the appliance to turn off the sound temporarily (see

“Power Supplies” on page 3-2.)

Figure A-8: REO 9100 Mute Button

Recover System Page Appears in the GUI

If the REO 9100 GUI displays the Recover System screen, it indicates that the RAID set associated with a controller is damaged or unavailable. This can occur if two disks fail in a RAID

5 configuration. If you are using Expansion Arrays, it can also occur if an array is momentarily detached from the appliance. While this makes the appliance temporarily unusable, you can use the Recover System screen to correct the situation.

Figure A-9: Recover System Screen

REO 9100/9100c User Guide Basic Troubleshooting

NOTE: The Display DM button does not appear on the page if the REO cannot properly

communicate with the RAID controller. When present, this button allows you to see the status of your RAID arrays on the Disk Management System Recover Mode page (Figure A-10). You cannot take any actions from that page; to return to the Recover System page, you must click Back on your browser.

Figure A-10: Disk Management System Recover Mode Screen

1. Make sure that all disks are inserted in the appliance.

2. If you are using an Expansion Array, make sure that it is connected to the

appliance.

3. Click Save to save a copy of the existing log files to a safe location.

For more information, see “Using the Log Files” on page A-6.

4. Click Restart to shut down and restart the appliance.

5. If the Recover System page appears again after you restart the appliance

and log on, click Restart a second time.

6. If the Recover System page appears again after you restart the appliance

a second time, click the applicable RAID button to re-create the volume configuration.

IMPORTANT: Clicking one of the RAID buttons invokes a Volume Setup, which destroys all existing data.

7. When the confirmation message appears, click OK to continue.

Overland Storage 9100, 9100C User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Preface

Contents

Overview

Introduction and Requirements

Reviewing Pre-Installation Requirements

Network

Initiators

Browser

Register your REO 9100

Hardware Setup

Preparing the Array and Installation Area

Unpacking the REO 9100

Preparing the Installation Area

Mounting the Appliance in a Rack

Installing the Rail Kit

Inserting the Appliance

Reinstalling Drive Carrier Assemblies

Attaching Cables

Connecting a UPS

Powering Up the Appliance

Verifying Insertion of Disks

Enabling Power

Power Supplies

Shutting Down the Appliance

Backup Power

UPS Power Monitoring

Behavior When Connected to UPS

Supported UPS Models

Configuring the REO Software

Set Up Network Addressing

Logging On

Entering Your Network Configuration Settings

Configuring GbE Data Ports

Configuring FC Data Ports

Entering the System Information

Using RAID Setup

RAID Setup with One or More Expansion Units

Virtual Tape Library Setup

Adding a VTL

Modifying Target Configuration Settings

Adding Initiators

Displaying VTL Status

Backing Up the Appliance Configuration

Configuring Virtual Devices

Virtual Device Overview

Standalone Disk Devices

Creating Standalone Disk Devices

Modifying Standalone Disk Devices

Setting the SCSI Time-Out Value in Windows Environments

Standalone Virtual Tape Devices

Creating Standalone Tape Devices

Dynamic Virtual Tapes

Virtual Tapes

Modifying Standalone Tape Devices (Not Multisite)

Modifying Multisite Tape Devices

Add iSCSI Initiator Access for Standalone Devices

Add FC Initiator Access for Standalone Devices

Configuring a Static Route

Removing a Route

Add Multisite Initiator Access

Create Multisite Tape

Creating a Multisite Tape Device

Providing Job Schedule Information

Restoring Configuration Settings From Backup File

Working With the Appliance

Logging On from Any System with Network Access

Logging Off the GUI

Establishing Communication Between the Systems

Connecting the REO Ports

Looking at How Dynamic Tape Devices Work

Checking Communication with Other Appliances or Systems

Managing Multi-SitePAC Jobs

Refreshing the GUI Display

Reviewing How the Disk Drives are Numbered

Understanding What the LEDs Represent

Front Panel LEDs