Compaq TL891 - DLT Tape Library User manual

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Writer: Everett Godaire Project: TL891 MiniLibrary System User's Guide Comments:
Part Number: ER-TL891-UA. A01 File Name: a-frnt Last Saved On: 3/3/99 12:17 PM
TL891 MiniLibrary System User's
Guide
First Edition (March 1999)
Part Number ER-TL891-UA. A01
Compaq Computer Corporation

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Writer: Everett Godaire Project: TL891 MiniLibrary System User's Guide Comments:
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Notice
The information in this publication is subject to change without notice.
COMPAQ COMPUTER CORPORATION SHALL NOT BE LIABLE FOR TECHNICAL OR
EDITORIAL ERRORS OR OMISSIONS CONTAINED HEREIN, NOR FOR INCIDENTAL OR
CONSEQUENTIAL DAMAGES RESULTING FROM THE FURNISHING, PERFORMANCE, OR
USE OF THIS MATERIAL. THIS INFORMATION IS PROVIDED “AS IS” AND COMPAQ
COMPUTER CORPORATION DISCLAIMS ANY WARRANTIES, EXPRESS, IMPLIED OR
STATUTORY AND EXPRESSLY DISCLAIMS THE IMPLIED WARRANTIES OF
MERCHANTABILITY, FITNESS FOR PARTICULAR PURPOSE, GOOD TITLE AND AGAINST
INFRINGEMENT.
This publication contains information protected by copyright. No part of this publication may be
photocopied or reproduced in any form without prior written consent from Compaq Computer
Corporation.
© 1999 Compaq Computer Corporation.
All rights reserved. Printed in the U.S.A.
The software described in this guide is furnished under a license agreement or nondisclosure agreement.
The software may be used or copied only in accordance with the terms of the agreement.
Compaq, Deskpro, Fastart, Compaq Insight Manager, Systempro, Systempro/LT, ProLiant, ROMPaq,
QVision, SmartStart, NetFlex, QuickFind, PaqFax, ProSignia, registered United States Patent and
Trademark Office.
Neoserver, Netelligent, Systempro/XL, SoftPaq, QuickBlank, QuickLock are trademarks and/or service
marks of Compaq Computer Corporation.
Microsoft, MS-DOS, Windows, and Windows NT are registered trademarks of Microsoft Corporation.
Pentium is a registered trademark and Xeon is a trademark of Intel Corporation.
Other product names mentioned herein may be trademarks and/or registered trademarks of their
respective companies.
TL891 MiniLibrary System User's Guide
First Edition (March 1999)
Part Number ER-TL891-UA. A01

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Writer: Everett Godaire Project: TL891 MiniLibrary System User's Guide Comments:
Part Number: ER-TL891-UA. A01 File Name: a-frnt Last Saved On: 3/3/99 12:17 PM
Contents
About This Guide
Text Conventions .................................................................................................vii
Symbols in Text ..................................................................................................viii
Symbols on Equipment........................................................................................viii
Rack Stability........................................................................................................ix
Getting Help..........................................................................................................ix
Compaq Technical Support.............................................................................ix
Compaq Website .............................................................................................x
Compaq Authorized Reseller ...........................................................................x
Chapter 1
Introduction
Modules .......................................................................................................1-1
The Expansion Unit......................................................................................1-3
The Base Module..........................................................................................1-3
SCSI Interface Configurations.......................................................................1-4
SCSI Bus Performance Considerations..........................................................1-4
Physical Configuration..................................................................................1-5
System Expansion.........................................................................................1-5
Features........................................................................................................1-6
Advanced Design Features..........................................................................1-12
Chapter 2
Operation
Expansion Unit.............................................................................................2-1
Starting the System.......................................................................................2-8
The MiniLibrary Menu Structure ................................................................2-12
Inserting and Removing Cartridges .............................................................2-24
Inserting a Magazine...................................................................................2-28
Base Module...............................................................................................2-29

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Chapter 3
Installation
Introduction..................................................................................................3-1
Planning Your Installation ............................................................................3-3
Mechanical Installation.................................................................................3-4
Chapter 4
Configuration
How to Customize Configuration..................................................................4-1
Descriptions of Configuration Options..........................................................4-3
Chapter 5
Regular Maintenance
Cleaning Cartridge........................................................................................5-2
Chapter 6
Diagnostics and Troubleshooting
Diagnosing Problems....................................................................................6-1
Error Recovery.............................................................................................6-2
Fault Symptom Codes (FSC) ........................................................................6-5
Using CE Diagnostics.................................................................................6-25
Using the Demo Submenu ..........................................................................6-26
Appendix A
Specifications
Safety.......................................................................................................... A-5
Electromagnetic Emission............................................................................ A-6
Statement for Equipment Meeting FCC Class A Requirements.....................A-8
Equipment Meeting VDE Class B Requirements.......................................... A-9
(VFG 1046/84 and VFG 243/91 for Germany)............................................. A-9
VCCI Notice for Japan Class I Equipment.................................................. A-10
Appendix B
Accessories
Data and Cleaning Cartridge Ordering Information ...................................... B-1
Bar Code Label and Magazine Ordering Information.................................... B-2
Appendix C
Product Notes for Windows NT and Novell NetWare
Host SCSI Interface..................................................................................... C-1

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Appendix D
Product Notes for Sun
General Information.....................................................................................D-1
Modifications Required for Solaris 2.4 (or later)........................................... D-3
Appendix E
Product Notes for IBM RS/6000
Modifications Required to Operate the TZ89 DLT Cartridge SBB Tape
Drive or Tabletop Drive with AIX 4.1.4 (or later)..........................................E-1
Appendix F
Adding a Second Tape Drive
Parts Location .....................................................................................................F-1
Overall Procedure................................................................................................F-2
Removing and Replacing the Skin Cover (Desktop Models Only)..................F-2
Removing and Replacing the Cover Plate......................................................F-4
Removing and Replacing the Drive Caddy Assembly....................................F-5
Installing the Second Tape Drive...................................................................F-7
Appendix G
Information on Pass-Through Section Covers
Pass-Through Section Covers .............................................................................G-1
Appendix H
Tape Drives and Cartridges
Care and Handling of Cartridges..................................................................H-1
Checking a Cartridge for Damage ................................................................H-3
Archival Guidelines............................................................................................ H-6
Transportation Guidelines............................................................................H-6
Cleaning Guidelines..................................................................................... H-7
Cleaning the Tape Drive Heads....................................................................H-9
Preparing Cartridges for Use...................................................................... H-10
Index

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About This Guide
This guide is designed to be used as step-by-step instructions for installation
and as a reference for operation, troubleshooting, and future upgrades.
Text Conventions
This document uses the following conventions to distinguish elements of text:
Keys Keys appear in boldface. A plus sign (+) between
two keys indicates that they should be pressed
simultaneously.
USER INPUT User input appears in a different typeface and in
uppercase.
FILENAMES File names appear in uppercase italics.
Menu Options,
Command Names,
Dialog Box Names
These elements appear in initial capital letters.
COMMANDS,
DIRECTORY NAMES,
and DRIVE NAMES
These elements appear in uppercase.
Type When you are instructed to type information, type
the information without pressing the Enter key.
Enter When you are instructed to enter information, type
the information and then press the Enter key.

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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 loss of information.
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
These icons may be located on equipment in areas where hazardous conditions
may exist.
Any 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.

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Any surface or area of the equipment marked with these symbols
indicates the presence of a hot surface or hot component. If this
surface is contacted, the potential for injury exists.
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 equipment is supplied by multiple sources of
power.
WARNING: To reduce the risk of injury from electrical shock,
remove all power cords to completely disconnect power from
the system.
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.
■The stabilizing feet are attached to the rack if it is a single rack
installations.
■The racks are coupled together in multiple rack installations.
■A rack may become unstable if more than one component is extended for
any reason. Extend only one component at a time.
Getting Help
If you have a problem and have exhausted the information in this guide, you
can get further information and other help in the following locations.
Compaq Technical Support
You are entitled to free hardware technical telephone support for your product
for as long you own the product. A technical support specialist will help you
diagnose the problem or guide you to the next step in the warranty process.

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In North America, call the Compaq Technical Phone Support Center at
1-800-OK-COMPAQ1. This service is available 24 hours a day, 7 days a week.
Outside North America, call the nearest Compaq Technical Support Phone
Center. Telephone numbers for world wide Technical Support Centers are
listed on the Compaq website. Access the Compaq website by logging on to
the Internet at http://www.compaq.com.
Be sure to have the following information available before you call Compaq:
■Technical support registration number (if applicable)
■Product serial number (s)
■Product model name(s) and numbers(s)
■Applicable error messages
■Add-on boards or hardware
■Third-party hardware or software
■Operating system type and revision level
■Detailed, specific questions
Compaq Website
The Compaq website has information on this product as well as the latest
drivers and Flash ROM images. You can access the Compaq website by
logging on to the Internet at http://www.compaq.com.
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.
1For continuous quality improvement, calls may be recorded or monitored.

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Chapter
1
Introduction
This chapter describes the features of the expansion and base modules of the
MiniLibrary System, including Storage Architecture, SCSI Interface, Bus
Performance, and Physical Configuration/Expansion Options.
The MiniLibrary System is an expandable, modular tape library system
combining DLT technology drive with advanced robotics. The MiniLibrary
System is designed for high duty-cycle on-line and near-on-line applications,
such as hierarchical storage management (HSM). It is a superior performer in
high-volume backup and archival service as well.
Modules
Two types of modules comprise the MiniLibrary System:
■Expansion Unit (Master)
■MiniLibrary (Base Module)
The MiniLibrary System consists of one Expansion Unit and up to five
MiniLibrary base modules stacked in a rack. The Expansion Unit can move
media freely between itself and Base Modules via the system’s robotically-
controlled pass-through mechanism.
In a MiniLibrary System, you can combine modules to provide the right
combination of capacity and performance to meet your present storage
requirements. Compaq’s MiniLibrary storage architecture lets you add
modules to optimize throughput and capacity as your needs change.

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MiniLibrary Storage Architecture
When connected as a system, the robotics in the MiniLibrary Expansion Unit
act as commanded by the host computer(s). The host(s) need no knowledge of
the internal geometry of the system, or of the actions or capabilities of the
Base Modules.
The Expansion Unit presents to the host(s) a single SCSI medium changer
device with a single SCSI Medium Transport element, a number of SCSI
Storage elements equal to the total number of cartridge magazine slots, a
number of SCSI Import/Export elements as specified by the user during
configuration of the Expansion Unit, and a number of SCSI Data Transfer
elements equal to the total number of drives in the system.
Flexibility
Compaq’s MiniLibrary storage architecture is uniquely suited to growing
storage needs. Its flexible library robotics system enables you to start with a
system configured to your present requirements, confident that as your storage
needs evolve, you can easily modify the MiniLibrary by adding modules and
extending the pass-through mechanism. Add drives for faster performance or
magazine space for greater capacity, as needed. Then just turn on the power,
and immediately the system updates the system map so the host is informed of
the expanded capability.
Multi-Server Data Sharing
A host computer with a SCSI controller connected to a bus is a SCSI Initiator.
The Expansion Unit is a SCSI Target. SCSI rules permit multiple Initiators on
a single bus. Therefore, with the proper host software, it is possible to connect
multiple hosts to a single Expansion Unit over a single SCSI bus. This allows
multiple hosts to operate the library robotics, loading and unloading cartridges
as each host requires.
In a system with many drives, it is desirable to use multiple SCSI buses for the
drives, so the data transfer rate of the drives is not limited by bus bandwidth.
In a large, high-performance system, drives may be connected to separate
hosts. Using special software, one of the hosts can act as a master server,
processing all robotics commands. In this way several hosts may share a
common data base.

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The Expansion Unit
Description
The Expansion Unit integrates the robotics in the individual modules into a
single coordinated library robotics system. The Expansion Unit performs and
maintains an inventory of all media present in the system, including bar code
data. All necessary system control operations may be performed from the
control panel of the Expansion Unit, as well as from the host via software. The
SCSI interface for the library robotics is designed for high-speed
communication with the host, and Fast/Wide SCSI configurations.
In addition to its system control functions, the Expansion Unit has a 16-
cartridge magazine with a rugged random access robotic mechanism. The
module robotics moves cartridges between the pass-through mechanism and
any of the 16 cartridge storage locations.
The user may designate a magazine in one of the base modules as a mail slot
for inserting or removing one or more single cartridges, which implements the
SCSI Import/Export commands.
NOTE: A magazine that has been reserved for Import/Export service may not be used for
data storage.
The Base Module
Description
The Base Module has one or two TZ89 tape drives and a 10-cartridge
magazine with a rugged random access robotic mechanism.
Models
The TL891 using one or two TZ89 series drives, also use the DLTtape IV
cartridges, which provide a native capacity of 35 GB per cartridge. All models
can also read and write DLTTape III and DLTtape IIIxt cartridges. Both read
and write densities are selectable from the front panel, and under SCSI control
from the host.

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SCSI Interface Configurations
Systems are equipped with TZ89 drives use a Fast/Wide SCSI interface using
high-density 68-pin D-series connectors. The section on SCSI Interfaces in
Chapter 3, Installation, describes the available interface options.
SCSI Bus Performance Considerations
Data Transfer Rate
The data transfer rate of the MiniLibrary is dependent on the type and number
of drives and on the SCSI bus configuration. The bandwidth of the SCSI bus is
limited. As a result, the transfer rate of exceptionally fast drives such as the
TZ89 can be limited by sharing a SCSI bus with another disc drive on tape.
Drives
With a standard SCSI interface, modules equipped with TZ89 drives have a
native data transfer rate of 5.0 MB/second, 10 MB/sec for two drives. The
rates for compressed data are dependent on compression ratio, record size,
data type, and other system parameters, but averages approximately 1:7.
Internal Cabling Configuration
The MiniLibrary System is wired in an independent-bus SCSI configuration.
That is, the robotics and each of the drives has its own SCSI bus. SCSI
jumpers are available for those applications requiring that some combination
of drives and robotics be daisy-chained to a single SCSI bus. These
configurations are described in more detail in the section on SCSI Interfaces in
Chapter 3, Installation.

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Physical Configuration
The Expansion Unit must be mounted at the top of the stack, which places its
control panel at a convenient height. The control panels of the Base Modules
are of secondary importance, as they serve mainly to help localize system
failures. When installed, the motor drive assembly of the pass-through
mechanism is directly behind the Expansion Unit.
Base modules may be installed anywhere below the Expansion Unit, in any
order. There may be a slight performance advantage in making the Base
Modules contiguous, but gaps are permitted. The size of a gap is limited by the
fact that each gap must be bridged by some number of 7” pass-through
mechanism track sections. For safety, available cover plates should be
installed on all pass-through mechanism sections that are not connected to
MiniLibrary modules.
The Expansion Unit senses the position of each module during initialization at
power-up. Even if there are gaps between modules, the system will operate
correctly. If you plan to leave gaps between modules, be sure to order
additional pass-through mechanism track segments and cover plates equal to
the length of the gap.
System Expansion
A MiniLibrary System may be expanded in capacity and performance by
adding or removing TL891 modules. Associated with the Expansion Unit and
each of the Base Module(s) is a section of the pass-through mechanism.
System firmware integrates all of the robotics of these system modules with
that of the pass-through mechanism into a single high-performance library
robotics system.

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Features
Figures 1-1 through 1-5 identify some of the external features of the
Expansion Unit and the MiniLibrary.
SHR-1194
123
4
6
5
Figure 1-1. Expansion Unit Front View
1
16-Cartridge Magazine
4
Unlock/Open Button
2
Magazine Security Lock
5
Locked Indicator
3
Control Panel
6
Power Switch

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SHR-1195
12
3
4
6
5
Use
Cleaner
Drive
Fault
Loader
Fault
Figure 1-2. Base Module Front View
1
10-Cartridge Magazine
4
Unlock/Open Button
2
Magazine Security Lock
5
Locked Indicator
3
Control Panel
6
Power Switch
Control Panel
The control panels for all modules are the same, except for the number of LED
indicators. The control panel features a 4-line by 20-character backlit LCD
display, three or four LED indicators, and four buttons. The buttons enable the
operator to navigate through the menu structure to select and display operating
modes, device status, diagnostic and maintenance functions, device history and
error statistics, and system configuration. The functions of the control panel
are described in detail in Chapter 2, Operation.
Display
The backlit 4-line by 20-character control panel display provides a highly
intelligible presentation of drive and loader status, menu choices and error
messages. The scrolling feature greatly expands the amount of information
available to the operator. In the Expansion Unit, status information is available
for the entire system. The base modules display other information as needed
for localizing malfunctions.

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Magazine Security Lock
The Magazine Security Lock is a key-operated switch on the front panel of
each module. It can be used to prevent inadvertent removal of the cartridge
magazine.
Power Supply
The AC Power switch is located on the front panel of the module. The
autoranging power supply will adjust automatically to either of two operating
voltage ranges. The ranges are 100-120 VAC and 200-240 VAC. The power
supply is capable of operating at 50 or 60 Hz without any adjustment or
modification. AC power is supplied to the power supply by a single IEC-
compatible socket that can be connected to any properly grounded outlet.
Tape Cartridge Magazines
The 10-cartridge and 16-cartridge magazines are removable from the front
panel, but may be protected from tampering by any of three means: 1) a key-
operated Magazine Security Lock which must be unlocked before the
magazine can be removed, 2) an electronic combination lock operated by
using buttons on the Expansion Unit control panel, and 3) issuance by the host
of a SCSI ‘Prevent Medium Removal’ command. The rugged carbon-fiber-
reinforced polymer magazine fits into an extruded track, which assures precise
positioning with respect to the library robotics. A 10-cartridge tape magazine
is shown in Figure 1-3. Insertion and removal of the magazine is described in
Chapter 2, Operation.

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4
2
3
1
SHR-1226
Figure 1-3. Base Module 10-Cartridge Magazine
1
Slot 0
3
Barcode Label Slide Slot (not used)
2
Front Label Slide Slot
4
Slot 9

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1
5
4
3
2
SHR-1227
Figure 1-4. Expansion Unit Rear View
1
Pass-Through Mechanism
Motor Drive
4
Library Robotics SCSI Interface
2
Power Connector
5
Diagnostics Connector
3
Base Module Robotics
Interface Connectors