Enterprise Backup Solution with VERITAS
Backup Exec
User Guide
Par t Number: 170097-006
Sixth Edition (November 2001)
The Compaq StorageWorksTM Enterprise Backup Solution (EBS) is
an integration of backup and restore application software with
industry-standard hardware, providing a complete enterprise class
solution.
b
2001 Compaq Information Technologies Group, L.P.
Compaq, the Compaq logo, ProLiant, and StorageWorks are trademarks of Compaq Information
Technologies Group, L.P. in the U.S. and/or other countries.
Compaq, the Compaq logo, SmartStart, and Tru64 are trademarks of Compaq Information Technologies
Group, L.P. in the U.S. and/or other countries. UNIX is a trademark of The Open Group in the U.S. and/or
other countries.
All other product names mentioned herein may be trademarks of their respective companies.
Confidential computer software. Valid license from Compaq required for possession, use or copying.
Consistent with FAR 12.211 and 12.212, Commercial Computer Software, Computer Software
Documentation, and Technical Data for Commercial Items are licensed to the U.S. Government under
vendor's standard commercial license.
Compaq shall not be liable for technical or editorial errors or omissions contained herein. The
information is provided as is without warranty of any kind and is subject to change without notice. The
warranties for Compaq products are set forth in the express limited warranty statements accompanying
such products. Nothing herein should be construed as constituting an additional warranty.
Printed in the U.S.A.
Enterprise Backup Solution with VERITAS Backup Exec User Guide
Sixth Edition (November 2001)
Par t Number: 170097-006
Contents
About this Guide
Text Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
Symbols in Text . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix
Symbols on Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix
Rack Stability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x
Getting Help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi
Compaq Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi
Compaq Website . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi
Compaq Authorized Reseller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi
1 Features
Enterprise Backup Solution with VERITAS Backup Exec . . . . . . . . . . . . . . . . . . . . . . 11
Solution Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Solution Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2 Installing Components
Enterprise Backup Solution with VERITAS Backup Exec . . . . . . . . . . . . . . . . . . . . . . 21
Tape Libraries. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Gigabit Interface Converters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Fibre Channel-to-SCSI Bridges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Fibre Channel Switches and Fibre Channel Hubs . . . . . . . . . . . . . . . . . . . 21
Servers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Fibre Channel Host Bus Adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
RAID Array Storage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Enterprise Backup System Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Enterprise Backup Solution with VERITAS Backup Exec User Guide iii
Contents
Tape Libraries. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Mixed Media Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
StorageWorks ESL9000 DLT/SDLT Enterprise Tape Library Series. . . . . . . . . . . 24
StorageWorks ESL9326 Enterprise Tape Library . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Changing the SCSI ID Settings on an ESL9326 Tape Library . . . . . . . . . . . . . 26
Connecting the ESL9326 Tape Library. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
StorageWorks ESL9198 Enterprise Tape Library. . . . . . . . . . . . . . . . . . . . . . 211
Changing the SCSI ID Settings on a ESL9198 Tape Library . . . . . . . . . . . . . 211
Connecting the ESL9198 Tape Library. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212
StorageWorks TL895 DLT Library . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213
Changing the SCSI ID Settings on a TL895 DLT Tape Library. . . . . . . . . . . 215
Connecting the TL895 DLT Tape Library . . . . . . . . . . . . . . . . . . . . . . . . . . . 216
StorageWorks TL891 DLT MiniLibrary System. . . . . . . . . . . . . . . . . . . . . . . . . . 217
TL891 DLT MiniLibrary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Changing the SCSI ID Settings on a TL891 DLT MiniLibrary . . . . . . . . . . . 219
Connecting the TL891 DLT MiniLibrary . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220
TL891 DLT Expansion or Data Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221
Adding an Expansion Unit or Data Unit to a Stack Environment. . . . . . . . . . 221
Creating a Multi-Stack Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223
Devices in a Stack Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223
Connecting a TL891 DLT Expansion Unit or Data Unit . . . . . . . . . . . . . . . . 224
SCSI Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224
RMIC Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225
Powering On the TL891 DLT MiniLibrary System . . . . . . . . . . . . . . . . . . . . 226
StorageWorks MSL5000 Tape Library Series. . . . . . . . . . . . . . . . . . . . . . . . . . . . 227
MSL5026SL and MSL5026DLX Library Performance Features . . . . . . . . . . 227
Connecting the Library . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228
MSL5026 Library with One Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228
MSL5026 Library with Two Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229
Creating a Multi-Stack Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229
StorageWorks SSL2020 AIT Library System . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231
Connecting the SSL2020 AIT Library . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232
SSL2020 AIT Library with One Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233
SSL2020 AIT Library with Two Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233
Creating a SSL2020 Stack Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234
Configuring a SSL2020 as Master. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234
Configuring SSL2020s as Slaves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234
Cabling a SSL2020 Stack Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234
iv Enterprise Backup Solution with VERITAS Backup Exec User Guide
Contents
Powering on the SSL2020 AIT Library System . . . . . . . . . . . . . . . . . . . . . . . 235
Gigabit Interface Converters (GBIC). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 236
Gigabit Interface Converter-Short Wave. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 236
Gigabit Interface Converter-Long Wave. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237
Fabric Long Wave GBIC Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237
Fibre Channel-to-SCSI Bridges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237
Modular Data Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237
Connecting the MDR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238
Fibre Channel Host to SCSI Target Configuration. . . . . . . . . . . . . . . . . . . . . 239
RemapFcSCSI Command After Hardware Configuration Change . . . . . . . . 240
Selective Storage Presentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240
Understanding Selective Storage Presentation. . . . . . . . . . . . . . . . . . . . . 240
Using SSP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240
Large LUN Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241
Fibre Channel Tape Controller-II . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242
Connecting the FCTC-II . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242
Fibre Channel Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244
StorageWorks SAN Switch 16, 16-EL and SAN Switch 8, 8-EL. . . . . . . . . . . . . 244
StorageWorks Fibre Channel Arbitrated Loop (FC-AL) Switch . . . . . . . . . . . . . 245
Fibre Channel Hubs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245
Connecting the StorageWorks Fibre Channel Hub 12 . . . . . . . . . . . . . . . . . . . . . 245
Management Module for the StorageWorks Fibre Channel Hub 12 . . . . . . . 246
Connecting the StorageWorks Fibre Channel Hub 7 . . . . . . . . . . . . . . . . . . . . . . 246
Servers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247
Compaq ProLiant Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247
Compaq TaskSmart N-Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250
Third Party x86 Servers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250
Fibre Channel Host Bus Adapters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 251
RAID Array Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254
StorageWorks Enterprise Modular Array 16000 (EMA16000) Fibre Channel . . 254
StorageWorks Enterprise Modular Array 12000 (EMA12000) Fibre Channel . . 255
StorageWorks Enterprise Storage Array 12000 (ESA12000) Fibre Channel . . . . 255
StorageWorks Modular Array 8000 (MA8000) Fibre Channel . . . . . . . . . . . . . . 256
StorageWorks RAID Array 8000 (RA8000) Fibre Channel . . . . . . . . . . . . . . . . . 256
StorageWorks Modular Array 6000 (MA6000) Fibre Channel . . . . . . . . . . . . . . 257
StorageWorks RAID Array 4000 (RA4000) Fibre Channel and RAID Array
4100 (RA4100) Fibre Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257
Switch Fabric Support for the RA4000/RA4100 . . . . . . . . . . . . . . . . . . . . . . 257
Enterprise Backup Solution with VERITAS Backup Exec User Guide v
Contents
Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 259
Fibre Channel Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 259
SCSI Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 259
EBS Power On Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260
3 Sizing and Supported Configurations
Sizing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Supported Configurations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Basic BackPaq or SANPAQ Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Basic SAN Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Maximum Server Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Heterogeneous Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Windows NT and Windows 2000, or Novell Netware EBS Cluster Configuration 35
RA4100 SAN Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
RA4100 Cluster Configuration with Redundant Path . . . . . . . . . . . . . . . . . . . . . . . 37
SmartArray SAN Access Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Feed Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Storage Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
File Block Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 310
File (Data) Compression Ratio. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 310
Tape Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 311
4 Management
Compaq Management Tools. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Compaq Insight Manager (English and Japanese) . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Before Installing Compaq Insight Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Installing Compaq Insight Manager Agents for Windows NT/2000 . . . . . . . . 44
Installing Compaq Insight Manager Agents for Novell NetWare . . . . . . . . . . . 46
Compaq Insight Manager XE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Tape Storage Management Console (TSMC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Device Listing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Tape Library Test Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
StorageWorks Command Console (SWCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
EBS-specific requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 410
Third Party Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 412
Index
vi Enterprise Backup Solution with VERITAS Backup Exec User Guide
About this Guide
The following sections are covered:
Text Conventions
Symbols in Text
Symbols on Equipment
Rack Stability
Getting Help
Compaq Authorized Reseller
Text Conventions
The conventions included in Table 1 apply in most cases.
Table 1: Text Conventions
Element Convention Examples
Named Keys Bold Home, Print Screen, Num Lock, Esc,
Key Sequences A plus sign (+) between PgUp
two keys means that you Ctrl+A, Ctrl+Home, Alt+Ctrl+Del
should press them
simultaneously.
Menu Items Bold Choose Start > Programs > Backup.
and Sequences A right angle bracket (>) Click Make Backup.
between items refers to
Buttons In the Save As dialog box, choose the
the navigation sequence
Dialog Box drive, then the folder.
through menu selections.
Names
Directory Names Initial Caps Save the file in the C:\StorageSets\Default
and Paths (Unless they are case directory.
sensitive).
Enterprise Backup Solution with VERITAS Backup Exec User Guide vii
About this Guide
Table 1: Text Conventions (Continued)
Element Convention Examples
file names Italics, unless the file To configure storage, edit storageset.ini.
name is included in a (Directory name/path): Errors are logged
directory name/path. to \syslog\errors\config_errors.txt.
To exit from the program, type exit.
User Input Monospace font.
At the prompt, type this command:
COMMA ND User input appears in
NAMES SHOW THIS_CONTROLLER
bold.
COMMAND NAMES appear Use SET THIS_CONTROLLER to
change parameters.
in monospace font and
(no variable)
uppercase, unless they
are case sensitive. To see your settings, give the command:
Entered SHOW FULL
are displayed in angle (with variable)
brackets (< >) and all
lowercase.
System
Monospace font. Insert Disk into Drive A.
Responses You will see the Disk Full message.
(Output and
Navigate to your CD-ROM drive
Messages)
(usually D: or E:).
Drive Names
URLs Sans serif font. For update notices, visit:
http://www.compaq.com
viii Enterprise Backup Solution with VERITAS Backup Exec User Guide
About this Guide
Symbols in Text
These symbols may be found in the text of this guide. They have the following
meanings.
WARNING: Text set off in this manner indicates that failure to follow directions
in the warning could result in bodily harm or loss of life.
CAUTION: Text set off in this manner indicates that failure to follow directions could
result in damage to equipment or data.
IMPORTANT: Text set off in this manner presents clarifying information or specific instructions.
NOTE: Text set off in this manner presents commentary, sidelights, or interesting points of
information.
Symbols on Equipment
Any enclosed surface or area of the equipment marked with these
symbols indicates the presence of electrical shock hazards. Enclosed
area contains no operator serviceable parts.
WARNING: To reduce the risk of injury from electrical shock hazards, do
not open this enclosure.
Any RJ-45 receptacle marked with these symbols indicates a network
interface connection.
WARNING: To reduce the risk of electrical shock, fire, or damage to the
equipment, do not plug telephone or telecommunications connectors into
this receptacle.
Enterprise Backup Solution with VERITAS Backup Exec User Guide ix
About this Guide
Any surface or area of the equipment marked with these symbols
indicates the presence of a hot surface or hot component. Contact with
this surface could result in injury.
WARNING: To reduce the risk of injury from a hot component, allow the
surface to cool before touching.
Power supplies or systems marked with these symbols indicate the
presence of multiple sources of power.
WARNING: To reduce the risk of injury from electrical shock,
remove all power cords to completely disconnect power from the
power supplies and systems.
Any product or assembly marked with these symbols indicates that the
component exceeds the recommended weight for one individual to
handle safely.
WARNING: To reduce the risk of personal injury or damage to the
equipment, observe local occupational health and safety requirements
and guidelines for manually handling material.
Rack Stability
WARNING: To reduce the risk of personal injury or damage to the equipment, be
sure that:
The leveling jacks are extended to the floor.
The full weight of the rack rests on the leveling jacks.
In single rack installations, the stabilizing feet are attached to the rack.
In multiple rack installations, the racks are coupled.
Only one rack component is extended at any time. A rack may become
unstable if more than one rack component is extended for any reason.
x Enterprise Backup Solution with VERITAS Backup Exec User Guide
About this Guide
Getting Help
If you still have a question after reading this guide, contact service representatives or
visit our website.
Compaq Technical Support
In North America, call Compaq technical support at 1-800-OK-COMPAQ, available
24 hours a day, 7 days a week.
NOTE: For continuous quality improvement, calls may be recorded or monitored.
Outside North America, call Compaq technical support at the nearest location.
Telephone numbers for worldwide technical support are listed on the Compaq
website: http://www.compaq.com.
Be sure to have the following information available before calling:
Technical support registration number (if applicable)
Product serial numbers
Product model names and numbers
Applicable error messages
Operating system type and revision level
Detailed, specific questions.
Compaq Website
The Compaq website has the latest information on this product, as well as the latest
drivers. Access the Compaq website at: http://www.compaq.com/storage. From this
website, select the appropriate product or solution.
Compaq Authorized Reseller
For the name of your nearest Compaq Authorized Reseller:
In the United States, call 1-800-345-1518.
In Canada, call 1-800-263-5868.
Elsewhere, see the Compaq website for locations and telephone numbers.
Enterprise Backup Solution with VERITAS Backup Exec User Guide xi
1
Features
Enterprise Backup Solution with
VERITAS Backup Exec
Solution Features
The Compaq StorageWorksTM Enterprise Backup Solution (EBS) is an integration of
backup and restore application software with industry-standard hardware, providing a
complete enterprise class solution. Compaq has partnered with VERITAS to provide a
solution that supports the backup and restore processes of homogeneous and
heterogeneous operating systems using VERITAS Backup Exec software.
This backup solution is a storage management software package that focuses on data
backup and restore using a digital linear tape (DLT), advanced intelligent tape (AIT),
or super digital linear tape (SDLT) automated library and fibre channel technology.
The EBS successfully combines the functionality and management of EBS Storage
Area Network (SAN) high availability software, along with scaling tools to integrate
tape and disk storage subsystems in the same SAN environment.
Features incorporated in the solution include database protection, storage management
agents, and options for highly specialized networking environments. Enterprise data
backup and restore can be accomplished with different tape devices in various
configurations using a variety of transport methods such as the corporate
communication network, a server SCSI bus, or a fibre channel infrastructure. EBS
uses a SAN that provides dedicated bandwidth independent of the Local Area
Network (LAN). This independence allows single or multiple backup or restore jobs
to run without the network traffic that is caused by traditional data protection
environments.
Enterprise Backup Solution with VERITAS Backup Exec User Guide 11
Solution Components
The EBS with VERITAS Backup Exec may include:
Servers containing fibre channel host bus adapters
SAN switch, Fibre Channel Arbitrated Loop (FC-AL) switch, or fibre channel hub
Fibre channel-to-SCSI bridge
Tape library
Figure 11: Storage Area Network with Enterprise Backup Solution
12 Enterprise Backup Solution with VERITAS Backup Exec User Guide
This solution supports Compaq ProLiantTM and/or other approved multi-vendor x86
servers running Microsoft Windows NT 4.0, Windows 2000, or Novell NetWare
interconnected through StorageWorks SAN switches, FC-AL switches and fibre
channel hubs. The solution connects one or more differential SCSI libraries through
the Compaq StorageWorks Modular Data Router or Fibre Channel Tape Controller-II.
The backup software application manages the tape backup and restore operations and
controls the flow of information between the tape library and the servers. This
prevents two servers within the EBS from allocating a device or media at the same
time. When a job requiring tape resources is ready to run, the application checks if any
media device in the specified shared device group is available.
Jobs submitted using this backup software are run locally on the backup solution
server that the job was submitted to. Data is sent over the SAN to the tape library
rather than over the LAN. This achieves greater speed and reduces network traffic.
Jobs and devices can be managed and viewed from any server, or client connected
within the EBS that has this backup software solution installed.
Enterprise Backup Solution with VERITAS Backup Exec User Guide 13
2
Installing Components
Enterprise Backup Solution with
VERITAS Backup Exec
The Compaq StorageWorks Enterprise Backup Solution (EBS) with VERITAS
Backup Exec may include the following components:
Tape Libraries
StorageWorks ESL9326 DLT/SDLT Enterprise Tape Library
StorageWorks ESL9198 DLT/SDLT Enterprise Tape Library
StorageWorks TL895 DLT Library
StorageWorks TL891 DLT/SDLT MiniLibrary System
StorageWorks MSL5026 DLT/SDLT Tape Library
StorageWorks SSL2020 AIT Tape Library
Gigabit Interface Converters
Gigabit Interface Converter - Short Wave (GBIC-SW)
Gigabit Interface Converter - Long Wave (GBIC-LW)
Fibre Channel-to-SCSI Bridges
StorageWorks Modular Data Router (MDR)
Fibre Channel Tape Controller-II (FCTC-II)
Fibre Channel Switches and Fibre Channel Hubs
StorageWorks Fibre Channel SAN Switch 16 and Fibre Channel SAN Switch 8
StorageWorks Fibre Channel SAN Switch 16-EL and Fibre Channel SAN
Switch 8-EL
Compaq StorageWorks Enterprise Backup Solution with VERITAS Backup Exec 21
Installing Components
StorageWorks Fibre Channel Arbitrated Loop (FC-AL) Switch
StorageWorks Fibre Channel Hub 12
StorageWorks Fibre Channel Hub 7
Servers
Compaq ProLiant servers
Compaq TaskSmart N-Series servers
IBM, Dell, Hewlett-Packard x86 servers
Fibre Channel Host Bus Adapter
StorageWorks Fibre Channel Host Bus Adapter
PCI Fibre Channel Host Bus Adapter KGPSA-CB
PCI Fibre Channel Host Bus Adapter KGPSA-BC
RAID Array Storage
StorageWorks Enterprise Modular Array 16000 (EMA16000) Fibre Channel
StorageWorks Enterprise Modular Array 12000 (EMA12000) Fibre Channel
StorageWorks Enterprise Storage Array 12000 (ESA12000) Fibre Channel
StorageWorks Modular Array 8000 (MA8000) Fibre Channel
StorageWorks RAID Array 8000 (RA8000) Fibre Channel
StorageWorks Modular Array 6000 (MA6000) Fibre Channel
StorageWorks RAID Array 4100 (RA4100) and 4000 (RA4000) Fibre Channel
Cables
Fibre channel cables
SCSI cables
Compaq StorageWorks Enterprise Backup Solution with VERITAS Backup Exec
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Installing Components
Enterprise Backup System Requirements
The Compaq StorageWorks Enterprise Backup Solution requires that VERITAS
Backup Exec be installed on all servers with a supported operating system. The
supported operating systems include:
Windows 2000
Windows NT 4.0
Novell NetWare
The first server is the primary backup software server and each subsequent server is a
secondary server. Each SCSI bus should be limited to two SCSI tape drives, and the
tape library SCSI IDs must be set as follows:
Bus 0:
-- SCSI ID 1 = Robot (If applicable)
-- SCSI ID 2 = Tape drive
-- SCSI ID 3 = Tape drive
Bus 1 (and all succeeding SCSI buses)
-- SCSI ID 1 = Robot (If applicable)
-- SCSI ID 2 = Tape drive
-- SCSI ID 3 = Tape drive
Tape Libraries
A core advantage of Compaq StorageWorks Enterprise Backup Solution (EBS) with
VERITAS Backup Exec is the centralization of tape libraries and tape devices. Tape
libraries automate the tape handling process, freeing valuable administrative
resources. Implementing enterprise-class libraries within the EBS provides these
critical solution features: high availability, proven reliability, manageability, and
multi-unit scalability.
Compaq StorageWorks Enterprise Backup Solution with VERITAS Backup Exec 23
Installing Components
Mixed Media Support
With the introduction of Backup Exec 8.6 for Windows NT and Windows 2000,
Compaq introduces mixed media support with EBS on the ESL9000 and MSL5000
series libraries. This support allows customers to mix legacy DLT and new SDLT
drives in the same library and provides a strong investment protection feature for DLT
drive owners.
The EBS with VERITAS Backup Exec supports mixed media within a single library.
With mixed media support, an ESL9000 library can contain any combination of
Compaq 35/70 DLT, Compaq 40/80 DLT, and Compaq SDLT drives. An MSL5000
series library can contain any combination of Compaq 40/80 DLT and Compaq SDLT
drives.
Mixed media support in Backup Exec is provided through the use of media partitions.
The tape slots of the library must be logically partitioned so that like media and drives
are grouped together. For specific information on creating media partitions, refer to
the VERITAS Backup Exec for Windows NT/2000 User Guide.
StorageWorks ESL9000 DLT/SDLT Enterprise Tape Library
Series
The ESL9000 Enterprise DLT/SDLT Tape Library Series offers high availability and
scalability features not normally found in tape libraries. These features provide
maximum uptime. Based on PCI backplane architecture, the ESL9000 family also
offers a simple upgrade path for future plug-in features such as fibre channel cards,
network administration cards, or a library thin server card for direct network
application support control. The StorageWorks ESL9000 Series DLT/SDLT Enterprise
Tape Libraries provide the following:
High Availability--As data becomes more mission critical and downtime
becomes more costly to the enterprise, customers are requiring high availability
consolidated storage solutions that offer hot-swappable components and
redundancies of key operating subsystems (tape drives, controllers, power
supplies). With redundant power distribution, power supplies, and cooling fans,
coupled with hot-pluggable drive carriers, power supplies and cooling fan
modules, these tape libraries offer the best in high availability for continuous
operation.
Proven Reliability--Using DLT/SDLT tape drives and proven library robotics
with a rating of 1,000,000 load/unload cycles, these tape libraries provide the
necessary high reliability.
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Installing Components
Manageability--Compaq tape library configurations are fully supported through
Compaq Insight ManagerTM, providing information to administrators for robotic
and tape status changes as well as fault status of redundant components. Compaq
Tape Storage Management Console (TSMC) software provides management and
diagnostics.
Mixed Media Support--Compaq supports mixed-media capabilities with the
ESL tape library series. Customers can mix any combination of DLT7000,
DLT8000, or SDLT drives and media.
StorageWorks ESL9326 Enterprise Tape Library
The ESL9326D is a library that contains 326 slots, up to 16 Compaq 35/70 DLT drives
and provides native capacity of 11.4 TB. The ESL9326DLX contains 326 slots, up to
16 Compaq 40/80 DLT drives, and provides native capacity of 13 TB. The ESL9326S
contains 326 slots, up to 16 Compaq SDLT drives and provides native storage of 35
TB.
NOTE: For maximum performance with data at 2:1 compression or less, use a maximum of 4
SDLT drives per fiber connection to the MDR. Data with greater than 2:1 compression will
require fewer SDLT drives per fiber connection to maintain maximum performance.
The ESL9326 ships standard with redundant power, 2+N hot-plug power supplies, and
redundant hot-plug cooling fans for true high availability. The standalone cabinet is
scalable up to five modules. Each drive bay is preconfigured to accept a hot-swappable
DLT or SDLT drive canister for easy online drive expansion, service, and future drive
upgrades.
Adding the ESL9326 to the EBS product mix provides increased performance features
such as the following:
Increased scalability
Six to 16 hot-swappable DLT or SDLT drives matching performance and retention
needs
Lights-out operations
Compaq StorageWorks Enterprise Backup Solution with VERITAS Backup Exec 25
Installing Components
3
2
4 5
1
Figure 21: Possible ESL9326 Tape Library configuration
1 2
ESL9326 tape library MDR
3 4
SAN Switch 16 Ser ver
5 Fibre channel host bus
adapters
Changing the SCSI ID Settings on an ESL9326 Tape Library
1. The first step in installing the ESL9326 Tape Library is changing the SCSI ID
settings. Use the ESL9326 Tape Library control panel to change the SCSI ID
settings. Select Standby to take the library off-line.
2. Select Operator to enter the Operator screen. The Operator screen is restricted for
use by individuals with operator or service access privileges.
3. When prompted to enter a password, type the password on the keypad and press
Enter.
NOTE: The default password is 1234.
4. When the password is accepted, select Configure Library.
5. The Configure Library Menu displays a list of devices and current settings. To
change the settings, select Configure.
6. The Configure Library Settings screen is displayed. Press Select three times or
until Device is highlighted.
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Installing Components
7. Press the Left Arrow and Right Arrow buttons to select the device to be
changed.
NOTE: As the operator scrolls through the list of devices the SCSI ID field simultaneously
updates the current SCSI ID settings of the device.
8. When the device is highlighted, press Select one time to highlight the SCSI ID
field.
9. Press the Left Arrow and Right Arrow buttons to scroll through the list of SCSI
IDs.
10. When the desired setting is displayed, press Change to save the settings as part of
the library configuration.
11. Repeat steps 7 through 10 to configure additional devices.
IMPORTANT: The library must be power-cycled before new SCSI ID settings are effective.
Compaq StorageWorks Enterprise Backup Solution with VERITAS Backup Exec 27
Installing Components
Connecting the ESL9326 Tape Library
Table 21: ESL9326 Tape Library SCSI ID Settings for
Fibre Channel Tape Controller-II (FCTC-II)
FCTC-II #1 FCTC-II #2 FCTC-II #3 FCTC-II #4
Bus Bus Bus Bus Bus Bus Bus
Device 0 1 0 1 0 1 0 Bu s 1
Robot 1
Drive 0 2
Drive 1 3
Drive 2 2
Drive 3 3
Drive 4 2
Drive 5 3
Drive 6 2
Drive 7 3
Drive 8 2
Drive 9 3
Drive 10 2
Drive 11 3
Drive 12 2
Drive 13 3
Drive 14 2
Drive 15 3
WARNING: Make sure the power to each component is off and the power cords
are unplugged before making any connections.
IMPORTANT: Read the documentation included with each component for additional operating
instructions before installing.
Compaq StorageWorks Enterprise Backup Solution with VERITAS Backup Exec
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Installing Components
Figure 22: Connecting the ESL9326 Tape Library
Connect the ESL9326 Tape Library to the MDR or the FCTC-II using a SCSI
interface cable. Before installing the ESL9326 Tape Library, refer to Table 22 for
correct drive, cabling, and SCSI port connections.
Compaq StorageWorks Enterprise Backup Solution with VERITAS Backup Exec 29
Installing Components
Table 22: ESL9326 Tape Library Connections
Number Number
of of SCSI Library SCSI Port Por ts Requiring
Drives Cables Connectors Termination
2 1 A B
3 2 A and C B and D
4 2 A and C B and D
5 3 A, C, and E B, D, and F
6 3 A, C, and E B, D, and F
7 4 A, C, E, and G B, D, F, and H
8 4 A, C, E, and G B, D, F, and H
9 5 A, C, E, G, and I B, D, F, H, and J
10 5 A, C, E, G, and I B, D, F, H, and J
11 6 A, C, E, G, I, and K B, D, F, H, J, and L
12 6 A, C, E, G, I, and K B, D, F, H, J, and L
13 7 A, C, E, G, I, K, and M B, D, F, H, J, L, and N
14 7 A, C, E, G, I, K, and M B, D, F, H, J, L, and N
15 8 A, C, E, G, I, K, M, and O B, D, F, H, J, L, N, and P
16 8 A, C, E, G, I, K, M, and O B, D, F, H, J, L, N, and P
NOTE: Follow the instructions in the Compaq ESL9326 Tape Library Installation Guide to install
and configure the tape library.
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Installing Components
StorageWorks ESL9198 Enterprise Tape Library
The ESL9198 Enterprise Tape Library is a library that contains 198 slots and up to 10
Compaq 40/80 DLT drives and provides native capacity of 7.7 TB or up to 10 Compaq
SDLT drives providing a native capacity of 21.3 TB.
NOTE: For maximum performance with data at 2:1 compression or less, use a maximum of 4
SDLT drives per fiber connection to the MDR. Data with greater than 2:1 compression requires
fewer SDLT drives per fiber connection to maintain maximum performance.
3
2
4 5
1
Figure 23: Possible ESL9198 Tape Library configuration
1 2
ESL9198 Tape Library MDR
3 4
SAN Switch 8 Ser ver
5 Fibre channel host bus
adapters
Changing the SCSI ID Settings on a ESL9198 Tape Library
The first step in installing the ESL9198 Tape Library is changing the SCSI ID settings.
Use the ESL9198 Tape Library control panel to change the SCSI ID settings.
1. Seclect Standby to take the library off-line.
2. Select Operator to enter the operator screen. The Operator screen is restricted for
use by individuals with operator or service access privileges.
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Installing Components
3. When prompted for a password, type the password numbers on the keypad, and
then press Enter.
NOTE: The default password is 1234.
4. When the password is confirmed, select Configure Library.
5. The Configure Library Menu displays a list of devices and current settings. To
change the settings, select Configure.
6. The Configure Library Settings screen is displayed. Press Select three times or
until Device is highlighted.
7. Press the Left Arrow and Right Arrow buttons to select the device to be
changed.
NOTE: As the operator scrolls through the list of devices, the SCSI ID field simultaneously
updates the current SCSI IDs setting of the device.
8. When the device has been highlighted, press Select one time to highlight the SCSI
ID field.
9. Press the Left Arrow and Right Arrow buttons to scroll through the list of SCSI
IDs.
10. When the desired setting is displayed, select Change to save the settings as part of
the library configuration.
11. Repeat steps 7 through 10 to configure additional devices.
IMPORTANT: The library must be power cycled before new SCSI ID settings are effective.
Connecting the ESL9198 Tape Library
WARNING: Make sure the power to each component is off and the power cords
are unplugged before making any connections.
IMPORTANT: Read the documentation included with each component for additional operating
instructions before installing.
Connect the ESL9198 Tape Library to the MDR using a SCSI interface cable. Before
installing the ESL9198 Tape Library, refer to Table 23 for correct drive, cabling, and
SCSI port connections.
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Installing Components
Table 23: ESL9198 Tape Library Connections
Number Numbe r
of of SCSI Library SCSI Port Por ts Requiring
Drives Cables Connectors Termination
2 1 A B
3 2 A and C B and D
4 2 A and C B and D
5 3 A, C, and E B, D, and F
6 3 A, C, and E B, D, and F
7 4 A, C, E, and G B, D, F, and H
8 4 A, C, E, and G B, D, F, and H
NOTE: Follow the instructions in the Compaq StorageWorks ESL9198 Tape Library Installation
Guide to install and configure the tape library.
StorageWorks TL895 DLT Library
The Compaq StorageWorks TL895 is a standalone DLT automated library that offers
96 fixed slots and a drive bay capable of supporting up to seven 35/70 DLT drives for
a native capacity of 3.3 TB.
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Installing Components
3 1
2
4
7
5
5
Figure 24: Possible TL895 DLT Tape Library configuration
1 2
TL895 DLT Tape Library MDR
3 4
SAN Switch 8-EL Ser vers
5 Fibre channel host bus
adapters
IMPORTANT: Upgrade Requirements
If you own a legacy (older version) of the TL895 Library, you must upgrade your library so that it
is compatible with the EBS. The serial numbers indicated below require revisions of the TL895
DLT.
Series Version: A01 B01 C01
EBS Compatible
Serial Number Start 5J83400001 5J83400001 2G91CBB5T001
Serial Number End 5J90400005 5J90400005 2G91CBB5X014
Revision Method On-site Revision On-site Revision Customer Configuration of
required via required via Robotics Serial Number
Compaq Services Compaq Services
If an upgrade is required, call Compaq at 1-800-OKCOMPAQ or contact a Compaq authorized
reseller to obtain an upgrade kit.
For additional information, go to the Compaq website at www.compaq.com. Search for the
following keywords: ebs, advisory or ebs, techpubs. Or go to www.compaq.com/ebs.
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Installing Components
Changing the SCSI ID Settings on a TL895 DLT Tape Library
The first step of installing the TL895 DLT Library is changing the SCSI ID settings.
Use the TL895 DLT Library control panel to change the SCSI ID settings.
1. Select Standby to take the library off-line.
2. Select Operator to enter the Operator screen. The Operator screen is restricted for
use by individuals with operator or service access privileges.
3. When prompted for a password, type the password on the keypad and press Enter.
NOTE: The default password is 1234.
4. When the password is confirmed, select Configure Library.
5. The Configure Library Menu displays a list of devices and current settings. To
change the settings, select Configure.
6. The Configure Library Settings screen is displayed. Press Select three times or
until Device is highlighted.
7. Press the Left Arrow and Right Arrow buttons to select the device to be
changed.
NOTE: As the operator scrolls through the list of devices the SCSI ID field simultaneously
updates the current SCSI IDs setting of the device.
8. When the device is highlighted, press Select one time to highlight the SCSI ID
field.
9. Press the Left Arrow and Right Arrow buttons to scroll through the list of SCSI
IDs.
10. When the desired setting is displayed, select Change to save the settings as part of
the library configuration.
11. Repeat steps 7 through 10 to configure additional devices.
IMPORTANT: The tape library must be power cycled before new SCSI settings are effective.
Compaq StorageWorks Enterprise Backup Solution with VERITAS Backup Exec 215
Installing Components
Table 24: TL895 DLT Tape Library SCSI ID Settings for
Fibre Channel Tape Controller-II (FCTC-II)
FCTC-II #1 FCTC-II #2
Device Bu s 0 Bu s 1 Bu s 0 Bu s 1
Robot 1
Drive 0 2
Drive 1 3
Drive 2 2
Drive 3 3
Drive 4 2
Drive 5 3
Drive 6 2
Connecting the TL895 DLT Tape Library
WARNING: Make sure the power to each component is off and the power cords
are unplugged before making any connections.
IMPORTANT: Read the documentation included with each component for additional operating
instructions before installing.
Connect the StorageWorks TL895 DLT Tape Library to the MDR or FCTC-II using a
SCSI interface cable. Before installing the TL895 DLT Tape Library, refer to
Table 25 for correct drive, cabling, and SCSI port connections.
Table 25: TL895 DLT Tape Library Connections
Number of
Numbe r SCSI Library SCSI Port
of Drives Cables Connectors
2 1 1
3 2 1 and 3
4 2 1 and 3
5 3 1, 3, and 5
6 3 1, 3, and 5
7 4 1, 3, 5, and 7
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Installing Components
1
2
3
4
Figure 25: Connecting a TL895 DLT Tape Library
1 - 4 SCSI cables to the FCTC-II
NOTE: Follow the instructions in the Compaq TL895 Tape Library Installation Guide to install
and configure the tape library.
StorageWorks TL891 DLT MiniLibrary System
The MiniLibrary System is an expandable, modular tape library system combining
DLT technology drives with advanced robotics. The MiniLibrary System is designed
for high duty-cycle online and near-online applications, such as hierarchical storage
management, high-volume backup, and archival service.
TL891 DLT MiniLibrary
The TL891 DLT MiniLibrary can support up to two DLT 35/70 drives. With 10 data
cartridges, the TL891 DLT MiniLibrary offers 350 GB of native storage capacity in a
small 4U form factor. The TL891DLX Minilibrary can support up to two DLT 40/80
drives. With 10 data cartridges, the TL891DLX MiniLibrary offers 400 GB of native
storage capacity in a small 4U form factor.
NOTE: Follow the instructions in the Compaq TL891 DLT MiniLibrary User Guide to install and
configure the tape library.
Compaq StorageWorks Enterprise Backup Solution with VERITAS Backup Exec 217
Installing Components
3
1
2
4
5
Figure 26: Possible TL891 DLT MiniLibrary configuration
1 2
TL891 DLT MiniLibrary MDR
3 4
SAN switch Ser vers
5 Fibre channel host bus
adapters
IMPORTANT: Upgrade Requirements
To make your TL891 DLT compatible with the Enterprise Backup Solution, locate the serial
number displayed on the back of your TL891 DLT MiniLibrary. If the serial number of your library
is any 10-digit number starting with 2K, for example 2K90527078, an upgrade kit is required for
your system.
If an upgrade is required, call Compaq at 1-800-OKCOMPAQ or contact a Compaq authorized
reseller to obtain an upgrade kit.
For additional information, go to the Compaq website at www.compaq.com. Search for the
following keywords: ebs, advisory or ebs, techpubs. Or go to www.compaq.com/ebs.
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Installing Components
Changing the SCSI ID Settings on a TL891 DLT MiniLibrary
The first step of installing the TL891 DLT MiniLibrary is to change the SCSI ID
settings. Use the TL891 DLT MiniLibrary front control panel to change the SCSI ID
settings. Proceed using the following instructions.
Use the TL891 DLT MiniLibrary control panel to change the SCSI ID settings.
1. Power on the library and wait until the Power-On Self Test (POST) completes and
the default screen is displayed on the control panel. The display may vary
depending on the number of drives in the library. The ready LED indicator lights
green and the library status window displays the following:
DLT0: No Tape
DLT1: No Tape
Loader Idle
2. At the Default Screen, press Enter. The Main Menu displays the following:
Load/Unload
Show Status Menu
Maintenance Menu
Configure Menu
3. Press the Down Arrow button. Select the Configure Menu, and then press Enter.
The Configure submenu displays the following:
Set Data Format
Set SCSI ID
Set Library Mode
Set Element Base
4. Press the Down Arrow button to select Set SCSI ID, and then press Enter. The
SCSI submenu displays the following:
Library Parity:
*Enabled
Library Bus ID:
*0
5. Press the Down Arrow button to select Library Bus ID, and then press Enter.
Press the Up Arrow button until a 1 is displayed below the Library Bus ID. Press
Enter to accept the SCSI ID of 1 as shown below:
Library Bus ID:
*1
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Installing Components
6. Press the Down Arrow button again to select DLT0 Bus ID and press Enter. Press
the Down Arrow button until a 2 is displayed below the DLT0 Bus ID, as shown
below:
DLT0 Bus ID:
*2
Press Enter to accept the SCSI ID of 2.
7. Repeat step 6 and set DLT1 to SCSI ID 3.
8. Press the Esc key to activate the new SCSI ID setting.
NOTE: For about 15 seconds, the front panel displays: SCSI Param. Update.
At the end of the update, the front panel returns to the Configure Menu as shown
below:
Set Data Format
Set SCSI ID
Set Library Mode
Set Element Base
9. Power off the library unit to begin the installation procedures.
IMPORTANT: The library must be power cycled before new SCSI settings take effect.
Connecting the TL891 DLT MiniLibrary
WARNING: Make sure the power to each component is off and the power cords
are unplugged before making any connections.
IMPORTANT: Read the documentation included with each component for additional operating
instructions before installing.
Connect the TL891 DLT MiniLibrary to the MDR or FCTC-II using a SCSI interface
cable. Refer to the section "Fibre Channel Tape Controller-II" later in this chapter, for
more information.
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4
3
2
1
5
Figure 27: Typical daisy chain cabling and termination
of the TL891 DLT Tape Library
1 2
SCSI interface cable SCSI jumper cable
3 4
SCSI jumper cable Differential terminator
5 Serial number
TL891 DLT Expansion or Data Unit
A TL891 DLT Expansion Unit has 16 slots and no drives. It acts as a controller of the
MiniLibrary system. The expansion unit is designed to expand the capacity and
performance of your storage system. The Compaq TL891 DLT Expansion Unit
integrates the robotics of individual modules into a single coordinated library robotics
system. The Expansion Unit performs and maintains an inventory of all media present
in the system, using a 16-cartridge magazine with a rugged random access robotics
mechanism.
Adding an Expansion Unit or Data Unit to a Stack Environment
IMPORTANT: The TL891 DLT Expansion Unit must always be the top unit in the stack of data
units and TL891 DLT MiniLibraries. This enables the pass-through robotics mechanism to
access and control all of the devices in the stack.
NOTE: The system must be rack-mounted.
NOTE: Follow the instructions in the Compaq TL891 MiniLibrary System User Guide to install
and configure the tape library.
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Installing Components
All robotics mechanism controllers are driven by the TL891 DLT Expansion Unit,
eliminating the need to drive each controller separately. In order for the TL891 DLT
Expansion Unit to drive each robotics mechanism, each device in the stack is attached
through a Robotics Mechanism Interface Cable (RMIC).
To enable the unit to work within a stack environment, the configuration of each
TL891 DLT MiniLibrary must be reset to a slave setting. Follow these requirements to
configure the unit:
All libraries (TL891 DLT Expansion Unit and TL891 DLT MiniLibraries) must be
in working condition.
Each TL891 DLT MiniLibrary used in the stack must be set to a slave setting
rather than the default standalone master setting. To make this change, go to the
front panel of the first TL891 DLT MiniLibrary:
1. Press the Enter button on the TL891 DLT MiniLibrary.
2. Select the Configure Menu option.
3. Select the Set Special Config option.
4. Select the Alternate Config option.
5. Press the Enter button.
6. Select Slave mode.
7. Press the Enter button.
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Creating a Multi-Stack Unit
1. Remove the back panel from the TL891 DLT MiniLibrary to allow the robotics
mechanism device to pass through.
2. Add TL891 DLT MiniLibraries to the stack (rack mount) and connect the serial
cables to their respective slots.
3. Connect a TL891 DLT Expansion Unit to the tape controller. There is a maximum
of two drives per SCSI bus.
IMPORTANT: When creating a stack configuration, ensure that your TL891 DLT Expansion
Unit firmware version is equal to or greater than any other firmware versions in the stack.
NOTE: For additional information, refer to the Compaq StorageWorks DLT MiniLibrary
Expansion Unit User Guide.
Devices in a Stack Environment
Table 26: TL891 DLT Stack Options
Device Number Supported In a Stack Environment
Tape Controller Minimum of 1 required/Maximum of 5,
refer to note below
1 SCSI Bus 1 to 2 drives + 1 TL891 master controller
2 SCSI Buses 3 to 4 drives
3 SCSI Buses 5 to 6 drives
TL891 DLT Expansion Unit 1 required
TL891 DLT MiniLibrary Minimum of 1 required/Maximum of 5
Data units Minimum of 0 required/Maximum of 5
NOTE: A maximum of six devices in any combination can be used, as long as the order
and termination guidelines are met.
Compaq StorageWorks Enterprise Backup Solution with VERITAS Backup Exec 223
Installing Components
Connecting a TL891 DLT Expansion Unit or Data Unit
IMPORTANT: The TL891 DLT Expansion Unit must always be the top unit in the stack of data
units and TL891 DLT MiniLibraries. This enables the pass-through robotic mechanism to access
and control all of the devices in the stack.
The Expansion Unit or Data Unit SCSI cabling can have several different
configurations depending on the specific needs of each particular system. The SCSI
cable connection to the TL891 DLT Expansion Unit should be daisy-chained to the
next available TL891 DLT MiniLibrary.
SCSI Cabling
The SCSI cabling can have several different configurations depending on the specific
needs of each particular system. However, certain cabling rules must be followed for
your system to function properly.
The expansion unit must be the top device in the stack.
The SCSI cable connection to the TL891 DLT Expansion Unit should be
daisy-chained to the next available TL891 DLT MiniLibrary.
A TL891 DLT must be the last device, at the bottom of the stack.
Data units, libraries with only storage capacity, and additional libraries can be
installed in any order below the expansion unit as long as one TL891 DLT is at the
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