Page 1
TL881/TL891 Family
MiniLibrary System
Reference Guide
Second Edition (July 2000)
Part Number 127510-002
Compaq Computer Corporation
Page 2
Notice
© 2000 Compaq Computer Corporation.
Compaq, the Compaq logo, and StorageWorks Registered in U. S. Patent and Trademark Office.
All other product names mentioned herein may be trademarks or registered 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 in this document is subject to change without notice.
The information in this publication is subject to change without notice and is provided “AS IS”
WITHOUT WARRANTY OF ANY KIND. THE ENTIRE RISK ARISING OUT OF THE USE OF
THIS INFORMATION REMAINS WITH RECIPIENT. IN NO EVENT SHALL COMPAQ BE
LIABLE FOR ANY DIRECT, CONSEQUENTIAL, INCIDENTAL, SPECIAL, PUNITIVE OR
OTHER DAMAGES WHATSOEVER (INCLUDING WITHOUT LIMITATION, DAMAGES FOR
LOSS OF BUSINESS PROFITS, BUSINESS INTERRUPTION OR LOSS OF BUSINESS
INFORMATION), EVEN IF COMPAQ HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
DAMAGES. THE FOREGOING SHALL APPLY REGARDLESS OF THE NEGLIGENCE OR
OTHER FAULT OF EITHER PARTY AND REGARDLESS OF WHETHER SUCH LIABILITY
SOUNDS IN CONTRACT, NEGLIGENCE, TORT, OR ANY OTHER THEORY OF LEGAL
LIABILITY, AND NOTWITHSTANDING ANY FAILURE OF ESSENTIAL PURPOSE OF ANY
LIMITED REMEDY.
The limited warranties for Compaq products are exclusively set forth in the documentation
accompanying such products. Nothing herein should be construed as constituting a further or additional
warranty.
Printed in the U.S.A.
Compaq StorageWorks TL881/TL891 Family MiniLibrary System Reference Guide
Second Edition (July 2000)
Part Number 127510-002
Page 3
Contents
About This Guide
Text Conventions..................................................................................................... xiii
Symbols in Text........................................................................................................xiv
Symbols on Equipment.............................................................................................xiv
Rack Stability ............................................................................................................xv
Getting Help .............................................................................................................xvi
Compaq Technical Support ...............................................................................xvi
Compaq Website ..............................................................................................xvii
Compaq Authorized Reseller............................................................................xvii
Chapter 1
System Description
Introduction ............................................................................................................. 1-1
Modules ................................................................................................................... 1-1
MiniLibrary Storage Architecture .................................................................... 1-2
Flexibility ......................................................................................................... 1-2
Expansion Unit ........................................................................................................ 1-3
MiniLibrary Base Module ....................................................................................... 1-4
Data Unit.................................................................................................................. 1-6
SCSI Interface Configurations................................................................................. 1-7
SCSI Bus Performance Considerations ............................................................ 1-7
Physical Configuration ............................................................................................ 1-8
System Expansion.................................................................................................... 1-8
Features.................................................................................................................... 1-8
Control Panel.................................................................................................. 1-12
Display............................................................................................................ 1-13
Magazine Security Lock................................................................................. 1-13
Power Supply ................................................................................................. 1-13
Tape Cartridge Magazines.............................................................................. 1-13
Integral Fan Cooling....................................................................................... 1-14
Library Robotics............................................................................................. 1-14
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iv Compaq StorageWorks TL881/TL891 Family MiniLibrary System Reference Guide
Bar Code Reader............................................................................................. 1-14
Advanced Design Features..................................................................................... 1-14
Embedded Diagnostics ...................................................................................1-14
Error Checking................................................................................................ 1-15
Compression ................................................................................................... 1-15
Capacity .......................................................................................................... 1-15
Media Life ...................................................................................................... 1-16
Chapter 2
Operation
Introduction.............................................................................................................. 2-1
Expansion Unit ........................................................................................................ 2-2
Power Switch .................................................................................................... 2-3
Control Panels................................................................................................... 2-3
MiniLibrary Base Module........................................................................................ 2-6
Power Switch .................................................................................................... 2-7
Control Panel .................................................................................................... 2-7
Data Unit.................................................................................................................. 2-9
Power Switch .................................................................................................. 2-10
Control Panel .................................................................................................. 2-10
Front Panel and Media Locks ................................................................................ 2-11
Starting the System ................................................................................................ 2-12
Display Messages ...........................................................................................2-12
Power-On Self Test Screen............................................................................. 2-12
Initialization Screens....................................................................................... 2-13
Default Screen ................................................................................................ 2-13
Fault Screen .................................................................................................... 2-13
MiniLibrary Base Module Default Screen...................................................... 2-14
Selecting Control Panel Display Modes .........................................................2-15
The MiniLibrary System Menu Structure.............................................................. 2-16
Entering the Menu Mode ................................................................................ 2-17
Exiting the Menu Mode .................................................................................. 2-18
Navigating Through the Menu Structure ............................................................... 2-18
Load/Unload Menu......................................................................................... 2-18
Show Status Menu .......................................................................................... 2-18
Library Status Submenu.................................................................................. 2-19
Drive Status Menu .......................................................................................... 2-20
Map Information Screen ................................................................................. 2-21
Maintenance Menu .........................................................................................2-22
Configure Menu.............................................................................................. 2-22
Show History Menu........................................................................................ 2-22
Security Menu................................................................................................. 2-22
Displaying Firmware Revision ..............................................................................2-24
Displaying Error Logs............................................................................................ 2-25
Loading and Unloading Tapes ............................................................................... 2-25
Page 5
About This Guide v
Inserting and Removing Cartridges....................................................................... 2-28
Removing a Magazine.................................................................................... 2-30
Emergency Magazine Removal...................................................................... 2-30
Inserting Cartridges into the Magazine........................................................... 2-31
Inserting a Magazine ...................................................................................... 2-32
MiniLibrary Base Module ..................................................................................... 2-33
Tape Requirements ................................................................................................ 2-34
Cartridge Handling and Storage ............................................................................ 2-34
Write Protection.............................................................................................. 2-36
Barcode Labels ............................................................................................... 2-37
MiniLibrary System Components.......................................................................... 2-37
Storage Architecture....................................................................................... 2-38
The Expansion Unit........................................................................................ 2-38
MiniLibrary Base Module .............................................................................. 2-39
Data Unit ........................................................................................................ 2-39
SCSI Interface Configurations........................................................................ 2-39
SCSI Bus Performance Considerations .......................................................... 2-39
Drives ............................................................................................................. 2-39
Internal Cabling Configuration....................................................................... 2-40
Bus Length Limitations .................................................................................. 2-40
Physical Configuration ................................................................................... 2-40
System Expansion .......................................................................................... 2-40
Free-Standing MiniLibrary Base Modules Conversion.................................. 2-40
Features .......................................................................................................... 2-41
Control Panel.................................................................................................. 2-45
Display............................................................................................................ 2-46
Magazine Security Lock................................................................................. 2-46
Power Supply ................................................................................................. 2-46
Tape Cartridge Magazines.............................................................................. 2-46
Integral Fan Cooling....................................................................................... 2-47
Library Robotics............................................................................................. 2-48
Bar Code Reader............................................................................................. 2-48
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vi Compaq StorageWorks TL881/TL891 Family MiniLibrary System Reference Guide
Chapter 3
Installation
Introduction.............................................................................................................. 3-1
Installation Overview............................................................................................... 3-1
Planning Your Installation ....................................................................................... 3-2
Positioning the Modules ...................................................................................3-3
Mechanical Installation............................................................................................ 3-3
Identifying the Parts of the PTM ......................................................................3-3
Orientation of Parts During Assembly.............................................................. 3-7
Preparing to Assemble the PTM....................................................................... 3-8
Assembling the PTM ........................................................................................ 3-8
Installing the Belt............................................................................................ 3-10
Adding to an Existing PTM ............................................................................ 3-15
Mechanical Installation of the Expansion and MiniLibrary Base Modules ........... 3-16
Rail Slide Separation ...................................................................................... 3-17
Installing the PTM in the Rack .............................................................................. 3-19
Interfaces and Cabling ...........................................................................................3-20
PTM Motor Cable........................................................................................... 3-21
Control Cables ................................................................................................ 3-22
Power Cord ..................................................................................................... 3-22
SCSI Interfaces ............................................................................................... 3-22
Interface Cable Specifications ........................................................................3-24
Terminators..................................................................................................... 3-25
Interface Cable and Terminator Installation ................................................... 3-25
Configuration ......................................................................................................... 3-29
Setting MiniLibrary Base Module (Slave) Configuration...............................3-30
Setting a SCSI ID............................................................................................ 3-31
Setting up a Mail Slot .....................................................................................3-33
Reserved Slots................................................................................................. 3-34
Descriptions of Configuration Options........................................................... 3-35
Page 7
About This Guide vii
Chapter 4
Configuration
Configuration Overview .......................................................................................... 4-1
Customizing Your Configuration ............................................................................ 4-2
Descriptions of Configuration Options.................................................................... 4-4
Set Data Format................................................................................................ 4-4
Set SCSI ........................................................................................................... 4-4
Set Library Mode.............................................................................................. 4-5
Set Sequential Configuration............................................................................ 4-5
Set Element Base.............................................................................................. 4-7
Set Date ............................................................................................................ 4-8
Set Time ......................................................................................................... 4-13
Set Baud Rate ................................................................................................. 4-13
Set Serial Number........................................................................................... 4-13
Set Unload Mode............................................................................................ 4-14
Set Auto Clean Mode ..................................................................................... 4-14
Set Negotiation ............................................................................................... 4-14
Set Mail Slot ................................................................................................... 4-14
Set Reserve Slot.............................................................................................. 4-15
Set Special Configuration............................................................................... 4-15
Set Default...................................................................................................... 4-15
Chapter 5
Regular Maintenance
Introduction ............................................................................................................. 5-1
Cleaning Cartridge................................................................................................... 5-2
Installing a Cleaning Cartridge......................................................................... 5-2
Running the Cleaning Cartridge....................................................................... 5-3
Removing the Cleaning Cartridge .................................................................... 5-4
Chapter 6
Diagnostics and Troubleshooting
Introduction ............................................................................................................. 6-1
Diagnosing Problems............................................................................................... 6-1
Platform Problems ............................................................................................ 6-1
General Drive Errors ........................................................................................ 6-2
Error Recovery ........................................................................................................ 6-2
Error Recovery Procedures............................................................................... 6-4
FSCs ........................................................................................................................ 6-4
Using System Diagnostics ..................................................................................... 6-21
Cartridge Cycle Diagnostic.................................................................................... 6-22
Using the Demo Submenu..................................................................................... 6-22
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viii Compaq StorageWorks TL881/TL891 Family MiniLibrary System Reference Guide
Appendix A
Specifications
Introduction............................................................................................................. A-1
Safety ...................................................................................................................... A-6
Electromagnetic Emission (EM)............................................................................. A-7
Notice............................................................................................................... A-7
Industry Canada............................................................................................... A-7
Industrie Canada .............................................................................................. A-7
FCC Notice ...................................................................................................... A-7
Acoustic Noise Declaration ............................................................................. A-8
FCC and VCCI Requirements................................................................................. A-9
Statement for Equipment Meeting FCC Class A Requirements...................... A-9
Equipment Meeting VDE Class B Requirements (VFG 1046/84 and VFG
243/91 for Germany) ..................................................................................... A-10
VCCI Notice for Japan Class I Equipment.................................................... A-11
Appendix B
Accessories
Introduction............................................................................................................. B-1
Data and Cleaning Cartridge Ordering Information ............................................... B-1
Bar Code Label and Magazine Ordering Information............................................. B-2
Appendix C
Product Notes for Microsoft Windows NT and Novell Netware
Introduction............................................................................................................. C-1
Host SCSI Interface ................................................................................................ C-2
Appendix D
Adding a Second Tape Drive
Introduction............................................................................................................. D-1
Parts Location ......................................................................................................... D-2
Overall Procedure ................................................................................................... D-3
Removing and Replacing the Skin Cover (Desktop Models Only) ................. D-4
Removing and Replacing the Cover Plate ....................................................... D-5
Removing and Replacing the Drive Caddy Assembly..................................... D-6
Installing the Second Tape Drive..................................................................... D-9
Appendix E
Information on Pass-Through Section Covers
Introduction..............................................................................................................E-1
Pass-Through Section Covers..................................................................................E-1
Page 9
Appendix F
Tape Drives and Cartridges
Introduction ............................................................................................................. F-1
Care and Handling of Cartridges ............................................................................. F-2
Handling and Storage Guidelines ..................................................................... F-2
Checking a Cartridge for Damage.................................................................... F-3
Archival Guidelines................................................................................................. F-6
Transportation Guidelines ....................................................................................... F-7
Cleaning Guidelines................................................................................................. F-8
Cleaning the Tape Drive Heads............................................................................. F-10
Preparing Cartridges for Use ................................................................................. F-11
Applying Bar Code Labels ............................................................................. F-11
Write-Protecting and Write-Enabling Cartridges ........................................... F-13
Using the Tape Drives .................................................................................... F-14
Appendix G
Interconnect Characteristics for Signals
Index
List of Figures
Figure 1-1. Expansion unit front view.................................................................... 1-3
Figure 1-2. MiniLibrary base module front view ................................................... 1-5
Figure 1-3. Data unit front view ............................................................................. 1-6
Figure 1-4. MiniLibrary base module 10-cartridge magazine ............................... 1-9
Figure 1-5. Expansion unit rear view.................................................................... 1-10
Figure 1-6. MiniLibrary base module rear view................................................... 1-11
Figure 1-7. Data unit rear view............................................................................. 1-12
Figure 2-1. Expansion unit front panel................................................................... 2-2
Figure 2-2. Expansion unit control panel............................................................... 2-4
Figure 2-3. MiniLibrary base module front panel................................................... 2-6
Figure 2-4. MiniLibrary base module control panel............................................... 2-8
Figure 2-5. Data unit front panel ............................................................................ 2-9
Figure 2-6. Data unit control panel....................................................................... 2-10
Figure 2-7. MiniLibrary menu structure............................................................... 2-16
Figure 2-8. Magazine in place .............................................................................. 2-29
Figure 2-9. 10-slot tape magazine with cartridges installed ................................. 2-31
Figure 2-10. Base module front panel .................................................................. 2-33
Figure 2-11. DLT tape cartridge........................................................................... 2-36
Figure 2-12. Expansion unit and data unit front view........................................... 2-41
Figure 2-13. MiniLibrary base module front view ............................................... 2-42
Figure 2-14. MiniLibrary base module 10-cartridge magazine ............................ 2-43
Figure 2-15. Expansion unit rear view.................................................................. 2-44
Figure 2-16. MiniLibrary base module rear view................................................. 2-45
About This Guide ix
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x Compaq StorageWorks TL881/TL891 Family MiniLibrary System Reference Guide
Figure 2-17. Data unit rear view ........................................................................... 2-47
Figure 3-1. PTM external parts............................................................................... 3-4
Figure 3-2. PTM car (front view)............................................................................ 3-5
Figure 3-3. Car rear view showing belt block......................................................... 3-6
Figure 3-4. PTM assembled.................................................................................... 3-7
Figure 3-5. Threading the belt through the base section ....................................... 3-10
Figure 3-6. Threading the belt through the drive section ...................................... 3-11
Figure 3-7. Checking belt length........................................................................... 3-12
Figure 3-8. Belt block with belt in place............................................................... 3-13
Figure 3-9. Aligning the captive screws with the block........................................ 3-14
Figure 3-10. Separating the rail slides................................................................... 3-17
Figure 3-11. Installing the PTM in the rack.......................................................... 3-19
Figure 3-12. Expansion unit SCSI connectors and cables (fast wide SCSI
shown).............................................................................................................. 3-21
Figure 3-13. Base module SCSI connectors, terminators, and cables (fast
wide interface, independent bus connection shown)........................................ 3-26
Figure 3-14. Base module SCSI connectors, terminator, jumpers, and
cables (SCSI-2 interface, daisy-chained connection shown)............................ 3-28
Figure 6-1. Troubleshooting flowchart ................................................................... 6-3
Figure D-1. Parts location ...................................................................................... D-2
Figure D-2. Removing the skin cover.................................................................... D-4
Figure D-3. Removing the cover plate................................................................... D-6
Figure D-4. Drive caddy ........................................................................................ D-7
Figure E-1. Cover assembly side plate....................................................................E-2
Figure E-2. Mechanism section cover....................................................................E-2
Figure F-1. Opening the cartridge door...................................................................F-4
Figure F-2. Correct and incorrect cartridge (takeup) leader positions ....................F-5
Figure F-3. Applying a bar code label .................................................................. F-12
Figure F-4. Write-protecting a cartridge ............................................................... F-13
Figure F-5. Tape drive control panel.....................................................................F-14
Page 11
List of Tables
Table 1-1 Expansion Unit Front View..................................................................... 1-3
Table 1-2 MiniLibrary Base Module Front View.................................................... 1-5
Table 1-3 Data Unit Front View.............................................................................. 1-6
Table 1-4 MiniLibrary Base Module 10-Cartridge Magazine ................................. 1-9
Table 1-5 Expansion Unit Rear View.................................................................... 1-10
Table 1-6 MiniLibrary Base Module Rear View ................................................... 1-11
Table 1-7 Data Unit Rear View ............................................................................. 1-12
Table 1-8 Base Module Tape Capacities ............................................................... 1-16
Table 1-9 Expansion Unit and Data Unit Tape Capacities .................................... 1-16
Table 2-1 Expansion Unit Front Panel .................................................................... 2-2
Table 2-2 Control Panel Button Functions .............................................................. 2-5
Table 2-3 MiniLibrary Base Module Front View.................................................... 2-7
Table 2-4 Data Unit Front Panel.............................................................................. 2-9
Table 2-5 Library Status Categories ...................................................................... 2-20
Table 2-6 Drive Status Parameters ........................................................................ 2-21
Table 2-7 Security Functions................................................................................. 2-23
Table 2-8 Magazine In Place ................................................................................. 2-29
Table 2-9 10-Slot Tape Magazine (Cartridges Installed)....................................... 2-31
Table 2-10 Base Module Front Panel .................................................................... 2-33
Table 2-11 DLTtape Types.................................................................................... 2-34
Table 2-12 DLT Tape Cartridge ............................................................................ 2-36
Table 2-13 Expansion Unit and Data Unit Front View ......................................... 2-41
Table 2-14 MiniLibrary Base Module Front View................................................ 2-42
Table 2-15 MiniLibrary Base Module 10-Cartridge Magazine ............................. 2-43
Table 2-16 Expansion Unit Rear View.................................................................. 2-44
Table 2-17 MiniLibrary Base Module Rear View ................................................. 2-45
Table 2-18 Data Unit Rear View ........................................................................... 2-47
Table 3-1 PTM External Parts ................................................................................. 3-4
Table 3-2 Car Rear View Showing Belt Block........................................................ 3-6
Table 3-3 PTM Assembled...................................................................................... 3-8
Table 3-4 Belt Length for Various System Sizes................................................... 3-11
Table 3-5 Belt Block with Belt in Place ................................................................ 3-13
Table 3-6 Aligning the Captive Screws with the Block......................................... 3-14
Table 3-7 Separating a Rack Slide......................................................................... 3-17
Table 3-8 Expansion Unit SCSI connectors and Cables (Fast Wide SCSI
Shown)............................................................................................................. 3-21
Table 3-9 Base Module SCSI Connectors, Terminators, and Cables .................... 3-27
Table 3-10 Base Module SCSI Connectors, Terminator, Jumpers, and
Cables............................................................................................................... 3-29
Table 3-11 MiniLibrary Configuration Options .................................................... 3-35
Table 3-12 MiniLibrary Special Configuration Options........................................ 3-41
Table 4-1 MiniLibrary Configuration Options ........................................................ 4-9
Table 4-2 MiniLibrary Special Configuration Options.......................................... 4-12
Table 6-1 Error Recovery Procedures...................................................................... 6-4
Table 6-2 System Error Codes (0xxx)..................................................................... 6-5
About This Guide xi
Page 12
xii Compaq StorageWorks TL881/TL891 Family MiniLibrary System Reference Guide
Table 6-3 SCSI Error Codes (1xxx)......................................................................... 6-6
Table 6-4 Control Error Codes (2xxx)..................................................................... 6-7
Table 6-5 Motor Process Error Codes (3xxx) ........................................................ 6-10
Table 6-6 Power-On Error Codes (4xxx)............................................................... 6-13
Table 6-7 Power-On Error Codes (5xxx)............................................................... 6-13
Table 6-8 Intermodule Error Codes (6xxx)............................................................ 6-16
Table 6-9 Boot Error Codes (Bxxx)....................................................................... 6-19
Table 6-10 Flash Error Codes (Fxxx) .................................................................... 6-20
Table A-1 Operational Performance Specifications................................................ A-1
Table A-2 Reliability Specifications (Drives)......................................................... A-3
Table A-3 Reliability Specifications (MiniLibrary System Robotics).................... A-3
Table A-4 Power Specifications ............................................................................. A-3
Table A-5 Mechanical Specifications ..................................................................... A-4
Table A-6 Environmental Specifications (Operating)............................................. A-4
Table A-7 Environmental Specifications (Packed or Unpacked)............................ A-5
Table A-8 Environmental Specifications (Storage/Transit).................................... A-5
Table A-9 Acoustic Emission Level ....................................................................... A-5
Table A-10 Regulator Agency Product Safety Certifications................................. A-6
Table A-11 Acoustic Noise Declaration Declared per ISO 9296 and ISO
7779................................................................................................................... A-8
Table A-12 Schallemissionswerte - Werteangaben nach ISO 9296 und ISO
7779 /DIN EN27779 ........................................................................................ A-8
Table B-1 Data and Cleaning Cartridge Part Numbers........................................... B-2
Table B-2 Bar Code Label and Magazine Part Numbers........................................ B-2
Table D-1 Parts Location ........................................................................................ D-2
Table F-1 Opening the Cartridge Door .................................................................... F-4
Table F-2 Opening the Cartridge Door .................................................................... F-5
Table F-3 Unrecorded (Blank) Cartridges ............................................................... F-7
Table F-4 Recorded Cartridges................................................................................ F-7
Table F-5 Cleaning Cartridge Guidelines ................................................................F-9
Table F-6 Write-Protecting a Cartridge .................................................................F-13
Table F-7 Tape Drive Control Panel...................................................................... F-15
Table G-1 Recommended Minimum Conductor Size............................................. G-1
Page 13
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:
About This Guide
Keys
USER INPUT
FILENAMES
Menu Options,
Command Names,
Dialog Box Names
COMMANDS,
DIRECTORY NAMES,
and DRIVE NAMES
Type When you are instructed to
Enter When you are instructed to
Keys appear in boldface. A plus sign (+) between
two keys indicates that they should be pressed
simultaneously.
User input appears in a different typeface and in
uppercase.
File names appear in uppercase italics.
These elements appear in initial capital letters.
These elements appear in uppercase.
the information
the information and then press the
without
pressing the
information, type
type
Enter
information, type
enter
Enter
key.
key.
Page 14
xiv Compaq StorageWorks TL881/TL891 Family MiniLibrary System Reference Guide
Symbols in Text
These symbols may be found in the text of this guide. They have the following
meanings.
WARNING:
in the warning could result in bodily harm or loss of life.
CAUTION:
could result in damage to equipment or loss of information.
IMPORTANT:
instructions.
Text set off in this manner presents commentary, sidelights, or interesting points
NOTE:
of information.
Text set off in this manner indicates that failure to follow directions
Text set off in this manner presents clarifying information or specific
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:
do not open this enclosure.
Text set off in this manner indicates that failure to follow directions
To reduce the risk of injury from electrical shock hazards,
Any RJ-45 receptacle marked with these symbols indicates a Network
Interface Connection.
WARNING:
the equipment, do not plug telephone or telecommunications
connectors into this receptacle.
To reduce the risk of electrical shock, fire, or damage to
Page 15
About This Guide xv
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:
the surface to cool before touching.
To reduce the risk of injury from a hot component, allow
Power Supplies or Systems marked with these symbols
indicate the equipment is supplied by multiple sources of
power.
Rack Stability
WARNING:
remove all power cords to completely disconnect power from
the system.
Any product or assembly marked with these symbols indicates that
the component exceeds the recommended weight for one individual
to handle safely.
WARNING:
equipment, observe local occupational health and safety
requirements and guidelines for manual material handling.
WARNING:
be sure that:
■
■
■
■
■
To reduce the risk of personal injury or damage to the equipment,
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 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.
To reduce the risk of injury from electrical shock,
To reduce the risk of personal injury or damage to the
Page 16
xvi Compaq StorageWorks TL881/TL891 Family MiniLibrary System Reference Guide
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.
In North America, call the Compaq Technical Phone Support Center at
1-800-OK-COMPAQ
1
. 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 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
■
1
For continuous quality improvement, calls may be recorded or monitored.
Page 17
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 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.
About This Guide xvii
.
Page 18
Introduction
This chapter describes the features of the Expansion Unit, the Base Module,
and the Data Unit of the Compaq StorageWorks TL881/TL891 Family
MiniLibrary System
performance, and physical configuration/expansion options.
The MiniLibrary system is an expandable, modular tape library system that
combines DLT technology drives with advanced robotics. The MiniLibrary
system is designed for high duty-cycle on-line and near-on-line applications. It
is a superior performer in high-volume backup and archival service.
Chapter
System Description
TM
, including storage architecture, SCSI interface, bus
1
Modules
The MiniLibrary system is based on three types of modules:
■
Expansion Unit (master)
■
MiniLibrary Base Module
■
Data Unit
The MiniLibrary system consists of one Expansion Unit and up to five
MiniLibrary Base Modules and Data Units in combination stacked in a rack.
The Expansion Unit can move media freely between itself, the MiniLibrary
Base Module, and the Data Unit by way of the system’s robotically controlled
Pass-Through Mechanism (PTM).
Page 19
1-2
Compaq StorageWorks TL881/TL891 Family MiniLibrary System Reference Guide
In a MiniLibrary system, you can combine modules to provide the right
combination of capacity and performance to meet your present storage
requirements. The Compaq MiniLibrary storage architecture lets you add
modules to optimize throughput and capacity as your needs change.
There is a specific Low Voltage Differential (LVD) version of the Expansion Unit for
NOTE:
the TL891DLX. Also, the Data Unit can be used in conjunction with all MiniLibrary
systems (TL881, TL891, TL891DLX, and TL891DX) because there is no SCSI bus
connection to the unit.
MiniLibrary Storage Architecture
When connected as a system, the robotics in the 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
MiniLibrary Base Modules or Data Units.
The Expansion Unit presents to the host(s) a single SCSI medium changer
device with a single SCSI medium transport element, several 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
The Compaq MiniLibrary storage architecture is uniquely suited to growing
storage needs. Its flexible library robotics system lets you 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 PTM. Add drives for faster performance or magazine space for
greater capacity, as needed. Then just turn on the power and the system
immediately updates the system map so the host is informed of the expanded
capability.
Page 20
Expansion Unit
The Expansion Unit (Figure 1-1) 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 can 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 for Fast Wide SCSI
configurations.
System Description
1
2
3
4
1-3
Figure 1-1. Expansion unit front view
Table 1-1
Expansion Unit Front View
Figure Legend Description
1
2
3
4
5
6
16-cartridge magazine
Magazine security lock
Control panel
Unlock/Open
Locked indicator
Power switch
5
button
6
SHR-1677
Page 21
1-4
Compaq StorageWorks TL881/TL891 Family MiniLibrary System Reference Guide
In addition to its system control functions, the Expansion Unit has a
16-cartridge magazine with a random access robotic mechanism. The module
robotics moves cartridges between the PTM and any of the 16 cartridge
storage locations.
You can designate a magazine in one of the MiniLibrary Base Modules as a
mail slot for inserting or removing one or more single cartridges, which
implements the SCSI IMPORT/EXPORT commands.
A magazine that has been reserved for import/export service can not be used for
NOTE:
data storage.
MiniLibrary Base Module
The MiniLibrary Base Module (Figure 1-2) has one or two DLT tape drives
and a 10-cartridge magazine with a rugged random access robotic mechanism.
The drives use the DLT tape IV cartridges, which provide a native capacity of
20 GB, 35 GB, or 40 GB per cartridge depending on the drive type. All models
can also read and write DLTtape III and DLT tape IIIxt cartridges. Both read
and write densities are selectable from the front panel, and under SCSI control
from the host. These units are available as differential rack-mount or table-top
versions, as well as a single-ended table-top-only version.
Page 22
System Description
1
2
1-5
3
Use
Cleaner
D
riv
e
Load
F
a
u
er
lt
F
au
lt
4
5
Figure 1-2. MiniLibrary base module front view
Table 1-2
MiniLibrary Base Module Front View
Figure Legend Description
1
2
3
4
5
6
10-cartridge magazine
Magazine security lock
Control panel
Unlock/Open
button
Locked indicator
Power switch
6
SHR-1678
Page 23
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Compaq StorageWorks TL881/TL891 Family MiniLibrary System Reference Guide
Data Unit
The Data Unit (Figure 1-3) has a 16-cartridge magazine and a random access
robotic mechanism, but no tape drives. The module robotics, under control of
the Expansion Unit, moves cartridges between the PTM and any of the 16
cartridge storage locations.
1
2
3
4
Figure 1-3. Data unit front view
Data Unit Front View
Figure Legend Description
1
2
3
4
5
6
5
Table 1-3
16-cartridge magazine
Magazine security lock
Control panel
Unlock/Open
Locked indicator
Power switch
button
6
SHR-1677
Page 24
SCSI Interface Configurations
DLT drives in TL891 MiniLibraries use either a fast-wide High Voltage
Differential (HVD) or a fast-wide, single-ended SCSI interface. The choice
must be made at the time of purchase. DLT drives in a TL891 MiniLibrary
system use a fast-wide HVD SCSI interface. DLT drives in a TL891DLX
MiniLibrary use a fast-wide auto-sensing Low Voltage Differential
(LVD)/single-ended SCSI interface.
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 DLT drives can be limited by sharing a
SCSI bus with another tape or disk drive. It is recommended that the
MiniLibrary be installed on its own controller for optimum performance.
Drives
System Description
1-7
With a standard SCSI interface, modules equipped with DLT 20/40 drives
have a native data transfer rate of 1.5 MB/s; 3.0 MB/s for two drives. Modules
equipped with DLT 35/70 drives have a native data transfer rate of
5 MB/s; 10 MB/s for two drives. Modules equipped with DLT 40/80 drives
have a native data transfer rate of 6 MB/s; 12 MB/s for two drives. The rates
for compressed data are dependent on compression ratio, record size, data
type, and other system parameters, but average 1.7 times greater than the
native rate.
Internal Cabling Configuration
The differential and Low Voltage Differential (LVD) versions of the
MiniLibrary Base Module are 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 can be daisy-chained to a single SCSI bus.
The single-ended table-top version, however, has the first drive daisy-chained
internally to the robotics in order to reduce cable length. These configurations
are described in more detail in Chapter 3, “Installation.”
Page 25
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Compaq StorageWorks TL881/TL891 Family MiniLibrary System Reference Guide
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 MiniLibrary
Base Modules and Data Units are of secondary importance, as they serve
mainly to help localize system failures. When installed, the motor drive
assembly of the PTM is directly behind the Expansion Unit.
MiniLibrary Base Modules can be installed anywhere below the Expansion
Unit, in any order. There can be a slight performance advantage in making the
MiniLibrary Base Modules contiguous, but gaps are permitted. The size of a
gap is limited by the fact that the same number of 7- inch track sections must
bridge each gap. For safety, available cover plates should be installed on all
PTM 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 PTM track segments and cover plates equal to the length of the gap.
System Expansion
Features
A MiniLibrary system can be expanded in capacity and performance by
adding or removing TL881/TL891/TL891DLX modules. Associated with the
Expansion Unit and each MiniLibrary Base Module is a section of the
PTM. System firmware integrates all of the robotics of these system modules
with that of the PTM into a single high-performance library robotics system.
There are a number of important external features to note about the Expansion
Unit, the MiniLibrary Base Module and the Data Unit. See Figures 1-4
through 1-7 to locate the features described in the following sections.
Page 26
4
3
2
Figure 1-4. MiniLibrary base module 10-cartridge magazine
Table 1-4
MiniLibrary Base Module 10-Cartridge Magazine
Figure Legend Description
1
System Description
SHR-1680
1-9
1
2
3
4
Slot 0
Front label slide slot
Bar code label slide slot (not used)
Slot 9
Page 27
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Compaq StorageWorks TL881/TL891 Family MiniLibrary System Reference Guide
1
5
4
3
Figure 1-5. Expansion unit rear view
Table 1-5
Expansion Unit Rear View
Figure Legend Description
1
2
3
4
5
PTM motor drive connector
Power connector
Base Module robotics interface connectors
Library robotics SCSI interface connector
Diagnostics connector
2
SHR-1681
Page 28
System Description
1
1-11
4
Figure 1-6. MiniLibrary base module rear view
3
2
Table 1-6
MiniLibrary Base Module Rear View
Figure Legend Description
1
2
3
4
* Not used in slave mode.
SCSI bus interface:
MiniLibrary* (left two connectors)
Drive 0 (middle two connectors)
Drive 1 (right two connectors)
Expansion Unit serial interface connector
Power connector
Fan
SHR-1682
Page 29
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Compaq StorageWorks TL881/TL891 Family MiniLibrary System Reference Guide
1
2
Figure 1-7. Data unit rear view
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 let you
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.”
1
Table 1-7
Data Unit Rear View
Figure Legend Description
1
2
Power connector
Diagnostics connector
SHR-1683
Page 30
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 you. In the Expansion Unit, status information is available for the
entire system. The MiniLibrary Base Modules display other information as
needed for localizing malfunctions.
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 adjusts 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.
System Description
1-13
Tape Cartridge Magazines
The 10-cartridge and 16-cartridge magazines are removable from the front
panel, but can be protected from tampering by any of three means:
A key-operated magazine security lock that must be unlocked before the
1.
magazine can be removed.
An electronic combination lock operated by using buttons on the
2.
Expansion Unit control panel.
Issuance by the host of a SCSI PREVENT MEDIUM REMOVAL
3.
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 1-4. Insertion and removal of
the magazine is described in Chapter 2, “Operation.”
Page 31
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Compaq StorageWorks TL881/TL891 Family MiniLibrary System Reference Guide
Integral Fan Cooling
A single forced-air fan is mounted inside each module to provide optimum
cooling for critical parts, and to prevent the drive and robotics electronics,
motors and power supply from overheating.
Library Robotics
The MiniLibrary system features library robotics that can load any of the
cartridges stored in any magazine in the system into any of the tape drives,
moving cartridges among as many as six modules within the MiniLibrary
system.
Bar Code Reader
The bar code reader is mounted on the cartridge shuttle in each module. It
reads bar code labels attached to each cartridge, and maintains the bar code
data in memory as part of the library system map.
Advanced Design Features
The MiniLibrary system incorporates many significant improvements in tape
drive and library design. One of the most important is the use of highly
reliable DLT technology, with media rated by the media manufacturer at better
than one million head passes.
Embedded Diagnostics
The MiniLibrary system and each of its modules provide three levels of
embedded diagnostics. The Power-On Self Test (POST) performs various
verification tests on the system’s configuration and host interface and device
control functions, as well as memory tests, at power-up. The second level of
diagnostics is the user diagnostics, which is provided for displaying and
changing configuration options. The third level, Customer Engineer (CE)
diagnostics, include advanced diagnostics to be used by CEs for servicing the
MiniLibrary system. Both the User diagnostics and the CE diagnostics can be
selected from the front panel.
User diagnostics are described in greater detail in Chapter 3, “Installation.”
Page 32
Error Checking
Drives used in the MiniLibrary system apply a 16-bit parity check to each
record, a 64-bit CRC to each 4 KB of data, and Reed-Solomon error correction
code overall. There is also an internal parity check on the data buffer.
Compression
MiniLibrary system drives use the standard Digital Lempel-Ziv (DLZ) data
compression algorithm.
Capacity
A single Base Module with its 10-cartridge magazine offers formatted
capacities as listed in Table 1-8. The data capacities of an Expansion Unit and
a Data Unit are listed in Table 1-9. The capacity of any module is determined
by the series of drive used, as well as the media type. When DLTtape III,
IIIXT, or IV cartridges are used with DLT4000, DLT7000, or DLT8000 series
drives, capacities are limited accordingly.
System Description
1-15
Page 33
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Compaq StorageWorks TL881/TL891 Family MiniLibrary System Reference Guide
Table 1-8
Base Module Tape Capacities
Model Cartridge Magazine
Capacity
Full Magazine
Uncompressed
1
Full Magazine
Compressed
TL881 DLTtape IV 10 200 GB 400 GB
TL891DLX DLTtape IV 10 400 GB 800 GB
TL891 DLTtape IV 10 350 GB 700 GB
1
Native capacities, uncompressed.
2
Maximum capacities given assume average 2:1 compression. Actual
compression varies with file content. The native capacity for a full Base
Module magazine is 10 times the native capacity per cartridge; for Expansion
and Data Units it is 16 times the native capacity per cartridge.
Table 1-9
Expansion Unit and Data Unit Tape Capacities
Drive Series Cartridge Full Magazine
Native
1
DLT4000 DLTtape IV 320 GB 640 GB
DLT7000 DLTtape IV 560 GB 1120 GB
DLT8000 DLTtape IV 640 GB 1280 GB
Full Magazine
Compressed
2
2
Media Life
1
Native capacities, uncompressed.
2
Maximum capacities given assume average 2:1 compression. Actual
compression varies with file content. The native capacity for a full Base
Module magazine is 10 times the native capacity per cartridge; for Expansion
Unit and Data Unit, it is 16 times the native capacity per cartridge.
The media used in the MiniLibrary is rated by the media manufacturer at over
one million head passes, and a shelf life of at least 30 years.
Page 34
Introduction
This chapter describes manual operation of the MiniLibrary system. The
system is operated manually through the MiniLibrary Expansion Unit control
panel. Online and offline operations can be done through the control panels of
the MiniLibrary Base Module and the MiniLibrary Data Unit.
Chapter
2
Operation
Page 35
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Compaq StorageWorks TL881/TL891 Family MiniLibrary System Reference Guide
Expansion Unit
Figure 2-1 shows the front panel of the Expansion Unit (Table 2-1). The panel
includes a power switch and the control panel, which has pushbuttons, LED
indicators, and a display.
1
2
3
4
Figure 2-1. Expansion unit front panel
Table 2-1
Expansion Unit Front Panel
Figure Legend Description
1
2
3
4
5
6
16-cartridge magazine
Magazine security lock
Control panel
Unlock/Open
Locked indicator
Power switch
5
button
6
SHR-1677
Page 36
Power Switch
The power switch controls the supply of AC power to the unit. The switch is
recessed into the front panel to prevent accidental power-up or power-down.
Press 1 to turn the unit on and press 0 to turn the unit off.
Control Panels
The Expansion Unit control panel (Figure 2-2) contains three LED indicators,
a four-line by 20–character backlit LCD display, and four pushbuttons. The
pushbuttons let you 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.
LED Indicators
The three LED indicators on the control panel are labeled Ready (green), Alert
(yellow), and Fault (red).
■
Operation 2-3
The Expansion Unit must be turned on after or simultaneously with the other
NOTE:
modules. If this is not done, the Expansion Unit can not be notified of the presence of one
or more of the other modules.
Ready (green) - lights when the system is ready to accept commands,
either from the control panel or from the host computer. The Ready
indicator goes out when you enter the Menu Mode.
Alert (yellow) - indicates that a fault or some other matter that requires
■
attention has occurred in one of the modules in the system. Line 2 of the
display blinks the number of the module where the fault has occurred.
The control panel of the indicated module might give a further
indication of the cause of the alert. Often, when the Alert LED is lit, a
Fault LED is lighted on one or more of the MiniLibrary Base Modules
as well.
Fault (red) - indicates that a fault has occurred in the Expansion Unit, or
■
that the magazine door is unable to close. When the Fault LED lights, a
Fault screen appears on the LCD display. The Fault screen is described
later in this chapter. A list of Fault Symptom Codes (FSC) and Error
Recovery Procedures (ERP) shown in Chapter 6, “Diagnostics and
Troubleshooting.”
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2-4 Compaq StorageWorks TL881/TL891 Family MiniLibrary System Reference Guide
Ready
Alert
Fault
Escape
Enter
Figure 2-2. Expansion unit control panel
Pushbuttons
SHR-1685
There are four buttons on the control panel, labeled
Escape, Enter
, , and
. The buttons do not directly control specific functions or options. Instead,
you use the buttons to navigate from the Default screen through a multi-level
menu structure, then select the desired option from the appropriate menu by
pressing the
Enter
button. Table 2-1 lists the effect of each of the four buttons
under various conditions.
The three most important things you need to know about the buttons are:
To enter the Menu Mode and display the Main menu from the Default
1.
screen, press the
To return to the Main menu from a submenu, press the
2.
repeatedly until the Main menu appears. Pressing the
Enter
button.
Escape
Escape
button
button
while the Main menu is displayed exits the Menu Mode and returns you
to the Default screen. The Default screen and the Main menu are shown
later in this chapter.
To display the Show Status menu only without entering Menu Mode,
3.
press the
Escape
button at the Default screen. The system remains
online.
Page 38
Operation 2-5
When you enter Menu Mode at the Expansion Unit, the Ready light on that module
NOTE:
goes out. This means that the MiniLibrary system is off-line, and the system responds to
all commands from the host with a SCSI Not Ready until you exit Menu Mode and the
Ready light goes on. When you enter Menu Mode at any of the MiniLibrary Base Modules,
the Ready light on that module goes out. This means that the individual module is off-line,
and the system responds to all commands from the host pertaining to that module with a
SCSI Not Ready until you exit Menu Mode and the Ready light goes on.
Table 2-2
Control Panel Button Functions
Escape Enter
At POST screen Not applicable
(Note 2)
At Default screen Displays Show
Status menu
At Status
submenu (while
on-line)
In Menu Mode Rejects currently
In Menu Mode Exits to next
At Fault screen Not applicable Clears soft errors Not applicable Not applicable
Returns to
Default screen
displayed choice,
or
Aborts control
panel operation in
progress or
higher menu level
or
Exits Menu mode
to default screen
Not applicable Not applicable
(Note 3)
Enters Menu
Mode
Same as in Menu
Mode
Accepts currently
displayed choice
Not applicable Not applicable
Same as in Menu
Mode
Moves
upward through
list of options, or
Scrolls part of
display 1 line
toward top of list
of options
1 line
Not applicable
(Note 3)
Same as in Menu
Mode
Moves
downward
through list of
options, or
Scrolls part of
display 1 line
toward bottom of
list of options
1 line
There is an auto-repeat feature for the
NOTE 1:
either button for more than one-half second, the control panel behaves as if you were
pressing and releasing the button about four times per second. This effect stops when
you release the button.
and buttons. When you press
Page 39
2-6 Compaq StorageWorks TL881/TL891 Family MiniLibrary System Reference Guide
This button is sampled during power-up while all control panel LEDs are on. If it
NOTE 2:
is pressed during that time, the system updates its geometry; that is, it checks for the
presence and location of all modules and remaps all media. Use this method when
removing or installing a module permanently.
These buttons are sampled during power-up. If both buttons are pressed during
NOTE 3:
that time, the system clears low-power memory. Use this procedure only when low-power
data is corrupted. Clearing low-power memory erases all log information, such as
configuration history, error history, and statistics. In addition, the system time, date and
password information is erased and must be re-entered.
MiniLibrary Base Module
Figure 2-3 shows the front panel of the MiniLibrary Base Module (Table 2-3).
The panel includes a power switch and the control panel, which has
pushbuttons, LED indicators, and a display.
1
2
3
U
se
C
lea
ner
4
5
Figure 2-3. MiniLibrary base module front panel
D
riv
e
Loade
F
a
u
lt
r
F
au
lt
6
SHR-1678
Page 40
Table 2-3
MiniLibrary Base Module Front View
Figure Legend Description
Operation 2-7
Power Switch
The power switch controls the supply of AC power to the module. The switch
is recessed into the front panel to prevent accidental power-up or power-down.
Press 1 to turn the module ON and press 0 to turn the module OFF.
Control Panel
The Base Module control panel (Figure 2-4) contains four LED indicators, a
four-line by 20-character, backlit LCD display, and four pushbuttons.
LED Indicators
1
2
3
4
5
6
10-cartridge magazine
Magazine security lock
Control panel
Unlock/Open
Locked indicator
Power switch
button
The four LED indicators on the control panel are labeled Ready (green), Use
Cleaner (yellow), Drive Fault (red), and Loader Fault (red).
Ready (green) – lights when the Base Module is ready to accept
■
commands, either from the control panel or from the host computer via
the Expansion Unit. The Ready indicator goes out when you enter Menu
Mode.
Page 41
2-8 Compaq StorageWorks TL881/TL891 Family MiniLibrary System Reference Guide
Use Cleaner (yellow) – indicates that either or both drives require
■
cleaning. A cleaning operation should be done as described in Chapter 5,
“Regular Maintenance.” When the Use Cleaner LED lights, you can find
out which drive needs cleaning by selecting Cleaning Needed on the
drive status submenu.
Drive Fault or Loader Fault (red) – lights when a Fault screen appears
■
on the LCD display. The fault screen is described later in this chapter. A
list of Fault Symptom Codes (FSC) and Error Recovery Procedures
(ERP) are shown in Chapter 5, “Regular Maintenance.”
Ready
Use
Cleaner
Drive
Loader
Fault
Fault
Escape
Enter
SHR-1687
Figure 2-4. MiniLibrary base module control panel
Pushbuttons
The pushbuttons on the Base Module control panel operate the same way as
the pushbuttons on the Expansion Unit control panel. See the description of
the Expansion Unit pushbuttons described earlier in this chapter.
Page 42
Data Unit
Operation 2-9
Figure 2-5 shows the front panel of the Data Unit (Table 2-4). The panel
includes a power switch and the control panel, which has pushbuttons, LED
indicators, and a display.
1
2
3
4
Figure 2-5. Data unit front panel
Data Unit Front Panel
Figure Legend Description
1
2
3
4
5
6
5
Table 2-4
16-cartridge magazine
Magazine security lock
Control panel
Unlock/Open
Locked indicator
Power switch
button
6
SHR-1677
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2-10 Compaq StorageWorks TL881/TL891 Family MiniLibrary System Reference Guide
Power Switch
The power switch controls the supply of AC power to the unit. The switch is
recessed into the front panel to prevent accidental power-up or power-down.
Press 1 to turn the unit ON, and press 0 to turn the unit OFF.
Control Panel
The Data Unit control panel (Figure 2-6) contains three LED indicators, a
four-line by 20-character backlit LCD display, and four pushbuttons.
Ready
Alert
Fault
Escape
Enter
Figure 2-6. Data unit control panel
SHR-1685
Page 44
Operation 2-11
LED Indicators
The three LED indicators on the control panel are labeled Ready (green), Alert
(yellow), and Fault (red).
Ready (green) - lights when the system is ready to accept commands,
■
either from the control panel or from the host computer via the
Expansion Unit. The Ready indicator goes out when you enter Menu
Mode.
Alert (yellow) - this LED has no function in the Data Unit.
■
Fault (red) – when this LED lights, a Fault screen appears on the
■
display. The Fault screen is described later in this chapter. A list of Fault
Symptom Codes (FSC) and Error Recovery Procedures (ERP) are
shown in Chapter 5, “Troubleshooting.”
Pushbuttons
The pushbuttons on the Data Unit control panel operate the same way as the
pushbuttons on the Expansion Unit control panel. See the description of the
Expansion Unit pushbuttons described earlier in this chapter.
Front Panel and Media Locks
To avoid accidental interruption of system operation by entering Menu Mode
or removing cartridges while the host is accessing the system, the front panel
and the media for each module can be electronically locked. When the front
panel of the Expansion Unit is locked, you can only enter Menu Mode after
entering a 4-digit code. That is, when the Default screen appears, pressing the
Enter
button does not invoke Menu Mode until you enter the code. The front
panel of a Base Module cannot be unlocked without using the Security
submenu on the Expansion Unit to unlock it.
All MiniLibrary Base Module and Data Unit front panels are locked by default
when connected to a Expansion Unit.
Media located in any or all modules can be locked and unlocked using the
Security submenu on the Expansion Unit. When media is locked, you can only
remove media after unlocking the module from the Expansion Unit using the
Security submenu.
Procedures for locking and unlocking front panels and media are described
later in this chapter.
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2-12 Compaq StorageWorks TL881/TL891 Family MiniLibrary System Reference Guide
Starting the System
CAUTION:
Expansion Unit either simultaneously with or after the other modules. If the
Expansion Unit is powered on first, its inventory of modules might be incorrect,
and the contents of some or all of the modules will be inaccessible to the
system and to the host.
Display Messages
The display on the control panel is capable of displaying four lines of 20
characters each, to allow the use of easy-to-understand messages. Many of
these messages and their functions are described in this chapter. The displays
described in other chapters are cross-referenced here as well.
Power-On Self Test Screen
When power is first applied to the module, a series of POST diagnostics are
performed. During POST execution, the model number of the module, the
firmware revision, the status or result of the test in progress and the current
date and time are displayed on the control panel as shown:
COMPAQ TL89x*
Firmware Level 0X.xx
Checking Hardware
26-Feb-19xx 15:35:59
* Note that this can be either one or two drives.
When powering up the MiniLibrary, power must be applied to the
Model Numbers
TL891 HVD 1 drive
TL892 HVD 2 drive
TL881 HVD or SE 1 drive
TL882 HVD or SE 2 drive
TL891DLX LVD 1 drive
TL892DLX LVD 2 drive
TL891DX HVD 1 drive
TL892DX HVD 2 drive
1
Upgrade drives
1
1
Page 46
Initialization Screens
After POST completes, the library robotics system is initialized. A series of
screens similar to the following appears during this process:
COMPAQ TL89x
Firmware Level 0X.xx
Initializing Loader
26-Feb-19xx 15:35:59
Default Screen
After the POST diagnostics have concluded successfully and initialization is
complete, the system Default screen appears:
READY
Modules:0_ _ _ _ _ _
0
_ _ _ _ _ _ _ _ 9
10
_ _ _ _ 15
The numbers on the second line correspond to the Base Modules that are
connected to the system. Up to five Base Modules can be connected. The third
and fourth lines represent the cartridge magazine in the Expansion Unit. A
rectangle appears in each position that contains a cartridge. An underline
represents an empty slot.
Operation 2-13
Fault Screen
When a fault is detected within the Expansion Unit or the Pass-Through
Mechanism (PTM), a screen similar to the following appears:
When a fault is detected in one of the Base Modules, the Alert LED on the
Expansion Unit control panel lights and the Fault screen appears on the
malfunctioning Base Module. At the same time, either the Drive Fault or the
Loader Fault LED lights on that module.
Fault Code: XXXX
Error Description
ERP line 1
ERP line 2
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2-14 Compaq StorageWorks TL881/TL891 Family MiniLibrary System Reference Guide
The first line shows a numerical FSC. The second line shows a brief
description of the error, in place of the words, “Error Description.” The third
and fourth lines contain a one- or two-line message describing the initial ERP
in place of the words shown in the Fault screen.
A list of FSC and ERP appears in Chapter 6, “Diagnostics and
Troubleshooting.”
MiniLibrary Base Module Default Screen
The MiniLibrary Base Modules display a different Default screen, as shown:
DLT0 Seeking
DLT1 Idle
Loader Idle
16
_ _ _ _ _ _ _ _ 25
The example shown is a Base Module in the module 1 position. The first and
second lines of the Default screen show the status of the two drives within the
Base Module. On line 4, a rectangle appears in each position that contains a
cartridge. An underline appears at each empty slot. The numbers at the
beginning and end of line 4 represent the numbers the system has assigned to
the first and last slots of that module.
The possible status conditions of the drives are:
■
No tape
■
Idle
■
Rewinding
■
Seeking
■
Reading
■
Writing
■
Erasing
■
Cleaning
■
Unloaded
■
Loading
■
Unloading
Page 48
Operation 2-15
Hard error
■
■
In flux
■
Fault
The third line in a MiniLibrary Base Module tells the status of the library
robotics (loader) within the MiniLibrary Base Module. The possible conditions
of the library robotics are:
■
Idle
■
Fetch/stow
■
Taking inventory
■
Checking drives
■
Scanning labels
■
Orphaned cartridge
■
Trapped cartridge
■
Elevator home
The fourth line in a Base Module is the magazine map. Numbers 16-25
represent the map numbers of the cartridge slots. In this case, a 10-slot
magazine is in the first position below the 16-slot Expansion Unit. These
numbers vary with the position of the module within the system and magazine
size. If no magazine is installed, line 4 indicates “No Magazine.” The boxes
present on this line indicate that a cartridge is present in the corresponding slot
of the magazine. An underline means that there is no cartridge present in that
slot.
Selecting Control Panel Display Modes
As previously described, the POST, Initialization and Default screens appear
without operator or host intervention. The Fault screens appear whenever a
fault occurs. The screens that follow appear in response to operator actions.
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2-16 Compaq StorageWorks TL881/TL891 Family MiniLibrary System Reference Guide
The MiniLibrary System Menu Structure
Figure 2-7 shows the structure of the MiniLibrary System menus.
Power-Up Displays
From/To
Notes:
(1) Applies to base module
(2) Applies to expansion unit
* Controlled by the Security menu
Library
DLT0
DLT1
Map Info.
Figure 2-7. MiniLibrary menu structure
Default Displays
Panel Lock*
Main Menu
Maintenance MenuShow Status MenuLoad/Unload
Clean Drive
Diagnostics
Menu
Cartridge Cycle
Friction Test
Tach Feedback
Scanner
Feedback
Demo Menu
Demo 1
Flash Update
NOVRAM
Update
Clock Update
Flash DLT
Flash from SCSI
Flash from Tape
Reboot Module
Fault Displays
Configuration Menu Show History Menu Security Menu
Set Data
Format Menu
DLT 0
DLT 1
Set SCSI Menu
Library Parity
Library Bus ID
DLT0 Bus ID
DLT1 Bus ID
Set Library
Mode (1)
Set Date Menu
Day
Month
Year
Set Baud Rate
Set Serial Number
Set Unload Mode
Set Auto Clean
Set Mail Slot (2)
Set Reserved
Slots
Set Default
Statistics
Error History
Initial Config.
Config History
Set Element
Base Menu
Transport Addr.
Storage Addr.
Transfer Addr.
Set
Identification
Menu
Vendor Ident.
Product Ident.
Set Time Menu
Hours
Minutes
Set Negotiation
Negotiation
Mode
Transfer Rate
Set Special
Config.
Mode PG 1F
Length
Model Number
Set Unlock Code
SHR-1690
Page 50
Entering the Menu Mode
Operation 2-17
IMPORTANT:
means that the module is off-line, and responds to all commands from the host with a
SCSI Not Ready until you exit Menu Mode and the Ready light comes on.
When the Expansion Unit enters Menu Mode, the Ready light goes out. This
To prevent inadvertent interruption of host operations, you can lock out the
Menu Mode using the Security menu. See the section “Security Menu,” later
in this chapter. When all control panels are locked, you must enter your unlock
code in order to display the Main menu. Note that the Show Status menu of
each module remains accessible. It can be displayed from the module’s
Default screen at any time by pressing the
Escape
button.
When the Default screen appears, you can enter Menu Mode by pressing the
Enter
button. Afterwards the Main menu appears:
Load/Unload
Show Status Menu
Maintenance Menu
Configure Menu
If the control panel has been locked, the following screen appears instead of the
NOTE:
Default screen shown above. You must know the unlock code for the system before you
can proceed.
Front Panel Locked
ENTER to Unlock
ESCAPE to Exit
When you press the
Unlock Code
" "
Enter
button, the following screen appears:
Using the button and buttons, set the first digit of the unlock code. When
you have set it, press the
and repeat the process. When you have finished, press the
Enter
the
button to confirm your entry. If the code is correct, the Main menu
Enter
button to move the cursor to the second digit
Escape
button, then
appears. If the code is incorrect, an error screen appears.
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2-18 Compaq StorageWorks TL881/TL891 Family MiniLibrary System Reference Guide
Exiting the Menu Mode
To leave the menu mode and return to the Default screen, press the
button repeatedly. Each time you press the
a higher menu level. When the Main menu appears, pressing the
once returns you to the Default screen. At this point, the Ready LED lights.
Escape
Navigating Through the Menu Structure
To select a submenu, move the on the display to the desired line using the
and buttons. Then press the
display the submenu. The
indicates that there are one or more additional items that can be reached by
scrolling, using the
■
Load/unload
■
Show status menu
■
Maintenance menu
■
Configuration men
■
Show history menu
■
Security menu
The following sections describe the submenus that correspond to each of the
Main menu selections.
button. The items available on the Main menu are:
Enter
button to confirm your choice and
at the end of the fourth line of the Main menu
Escape
button, the display moves to
Escape
button
Load/Unload Menu
The Load/Unload menu is described later in this chapter, under the section
“Loading and Unloading Tapes.”
Show Status Menu
When you select Show Status, the following menu appears:
Library
DLT0
DLT1
Page 52
The items available on the Show Status menu are:
■
Library
■
DLT0
■
DLT1
■
. . .
■
DLTn
■
Map Info
Operation 2-19
Move the
up or down with the and buttons, then press the
to select the item.
Library Status Submenu
When you select Library Status, the following scrollable menu appears:
Model Number:
COMPAQ TL89x
Firmware Revision
0X.xx
Enter
button
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2-20 Compaq StorageWorks TL881/TL891 Family MiniLibrary System Reference Guide
Table 2-5 lists the Library Status categories that are available.
Table 2-5
Library Status Categories
Category Category
Model number Firmware revision
Date Time
Loader status Library configuration
Vendor identification Product identification
Transport address Storage address
Transfer address Imp/exp address
Serial number SCSI bus ID
SCSI bus parity Negotiation mode
Transfer rate Unload mode
Mail slot emulation Mail slot count
Mode page 1F length Initialize element status
Boot version Flash type
Drive Status Menu
When you select either of the drives, the following scrollable menu appears:
Tape Motion:
Idle
Tape Format:
No Tape
Page 54
Table 2-6 lists the Drive Status parameters that are available.
Table 2-6
Drive Status Parameters
Parameter Parameter
Compression SCSI bus ID
Drive rev Controller rev
Cartridge present Hardware error
Cleaning needed Write protected
Operate handle Serial number
Read compression Write compression
Tape remaining Data cartridge count
Clean cartridge count Last clean hours
Power on hours Power on cycles
Speed setting Media type
Temperature
Operation 2-21
Map Information Screen
When you select Map Info, the following screen appears. The location being
reported appears on Line 1. The content of the bar code on the label, up to 8
characters, appears on Line 4.
DLT0
Occupied
Label Valid
XXXXXXXX
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2-22 Compaq StorageWorks TL881/TL891 Family MiniLibrary System Reference Guide
The list of locations available for display on line 1 is as follows:
If you do not designate any mail slots, those lines are omitted from the list.
NOTE:
Depending on the report for each location, Line 2 can display either Empty, or
Occupied, or, if a magazine is absent, Not Installed.
Depending on the report for each location, Line 3 can display either Label
Valid, or Label Not Present.
For each location reported, Line 4 displays the actual bar code on the label, up
to 8 characters.
Maintenance Menu
The Maintenance menu and the options that are intended for operator use are
described in Chapter 5, “Regular Maintenance.”
Configure Menu
The Configure menu, how to use it and the options available under it are
described in Chapter 3, “Installation.”
Show History Menu
The Show History menu lets you review the history of the system. An example
of the use of the Show History menu appears later in this chapter under the
section “Displaying Error Logs.” You can retrieve the configuration history,
the original configuration, as well as statistics on the number of operations the
library robotics and the drives have performed.
Security Menu
The Security menu lets you lock the control panel, preventing inadvertent or
unauthorized access to the Menu Mode, which takes the system offline. You
can display the Show Status menu without unlocking the panel (and without
taking the system offline) by pressing the
Escape
button at the Default screen.
Page 56
Operation 2-23
When you select the Security menu, the following scrollable screen appears:
Unlock All Panels
Unlock All Media
Lock All Panels
Lock All Media
Table 2-7 lists the security functions that are available.
Table 2-7
Security Functions
Category Category
Unlock all panels Unlock all media
Lock all panels Lock all media
Master locking Module 1 locking
. . . Module n locking
Set unlock code
To change the unlock code, or to enable or disable the panel locking function,
scroll down by pressing the
Press the
Enter
button. Afterward, the following screen appears:
Unlock Code
*"0000"
button until the is next to Set Unlock Code.
0000 Disables Lock
An underline cursor appears underneath the first digit. To set the first digit,
press the
the cursor to the second digit, press the
button or the button until the desired number appears. To move
Enter
button. Repeat the process for
each of the four digits. Make sure you remember the 4-digit number, as you
will need it in order to enter the Menu Mode. An unlock code of 0000 disables
panel locking.
When you finish entering four digits, press the
Escape
button. Afterwards, the
following screen appears:
Unlock Code
*"XXXX"
ENTER to Accept
ESCAPE to Exit
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2-24 Compaq StorageWorks TL881/TL891 Family MiniLibrary System Reference Guide
Your code is shown in place of XXXX.
Press the
the
Enter
button if you want to adopt the unlock code that appears. Press
Escape
button if you do not want to accept it. Press the
Escape
button
again to return to the Main menu, and again to return to the Default screen.
The next time you attempt to enter Menu Mode, the following screen appears.
You can still display the Status menu without using the security code by
pressing the
Front Panel Locked
ENTER to Unlock
ESCAPE to Exit
When you press the
Unlock Code
" "
Escape
button at the Default screen.
Enter
button, the following screen appears:
Using the and buttons, set the first digit of the unlock code. Press the
Enter
button to move the cursor to the second digit and repeat the process.
When you finish, press the
Escape
button. Afterwards, the following screen
appears:
Unlock Code
*"XXXX"
ENTER to Validate
ESCAPE to Exit
Press the
Enter
button to validate your choice. If the code is correct, the Main
menu appears. If the code is incorrect, an error screen appears. If you have
forgotten your unlock code, contact your technical support representative for
assistance.
Displaying Firmware Revision
You can display the library robotics firmware revision at any time by pressing
Escape
the
appears as one of the items on the Library Status submenu of the Show Status
menu. Press the
shown. Press the
displayed on line 2 of the POST screen and the Initialization screens.
button at the Default screen to display the Show Status menu. It
Enter
button with the arrow next to Library and the revision is
Escape
button to bring back the Default screen. It is also
Page 58
Displaying Error Logs
To display the error history of the module, you need to use the Show History
menu. Access this menu as follows:
Fault Code: XXXX
Error Description
DD/MMM/YYYY HH:MM:SS
Entry NNNN Of NNNN
Loading and Unloading Tapes
The Load/Unload menus let you specify a source and a destination for a
cartridge movement. As a result, you use exactly the same procedure to load
and unload. To load or unload a tape from the front panel of the module, use
the Load/Unload menus.
The following Default screen appears. From this screen, enter Menu Mode by
pressing the
READY
Modules 012345_
0
10
Enter
button.
_ _ _ _ _ _ _ _ 9
_ _ _ _ _ 16
Operation 2-25
Afterwards, the Main menu appears:
Load/Unload
Show Status Menu
Maintenance Menu
Configure Menu
The is next to the line that reads Load/Unload. Press the
Enter
display the first Load/Unload submenu, which is shown below:
From:
DLT1
To:
*Slot3
button to
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2-26 Compaq StorageWorks TL881/TL891 Family MiniLibrary System Reference Guide
Notice that the is next to line 2 of the display. Line 2 shows the top item in
a scrollable list of sources. Note that a
bottom line. This indicates that the
has appeared on the right of the
button can now be used to scroll through
the list, and that the top item on the list appears. When you press the
three things happen:
The list scrolls down one item (only line 2 scrolls).
1.
An
appears on the right of line 1 of the display. This indicates that
2.
there is one or more items above the item displayed on line 2.
The * at the left of line 2 disappears. This is because the * indicates the
3.
current selection or the default selection, and that you have scrolled the
default selection off of the screen, and haven’t yet selected an item from
the list.
The contents of the lists on line 2 and line 4 will vary as follows:
NOTE:
Initial Screen (From Line)
The list on line 2 (From line) includes every drive and every magazine slot
(including mail slots) that has a cartridge in it (you can’t get a cartridge from a
slot or drive that is empty).
From:
DLT1
To:
*Slot3
button,
Initial Screen (To Line)
The list on line 4 (To line) includes all of the valid destination choices, that is,
drives and slots that are empty (you can’t put a cartridge into a slot or drive
which already has one in it).
Scroll List (To Line)
There is another limitation on the To list. If you selected a drive on the From
screen, the To list can include only slots. If you selected a slot on the From
screen, the To list can contain only drives.
Page 60
Operation 2-27
Assume that you want to load the cartridge that is in Slot 4 into any available
drive. Use the
button to scroll line two to Slot 4. Afterwards, the following
screen appears:
From:
Slot4
To:
*DLT0
When you scrolled to your desired source, press the
Enter
button to select it.
Notice the two changes that occurred in the display.
The * reappears at the beginning of line 2, indicating that you have
1.
made a selection.
The
2.
now moves to line 4, indicating that you can now select a
destination.
From:
*Slot4
To:
*DLT0
You can now press the
that there is no
Enter
button to select DLT0 as the destination. Note
at the end of line 4, nor at the end of line 1. There are no
additional choices because you have selected a slot as the source, so the
destination must be a drive or the DLT1 already has a cartridge in it, so it
cannot be a valid destination.
Press the
Enter
button to select DLT0. In response, the Confirmation screen
appears:
From: Slot4 To:DLT0
ENTER To Execute
ESCAPE To Cancel
As the Confirmation screen indicates, to execute the load or unload, press the
Enter
button. If the Confirmation screen does not show your intended source
and destination, press the
Escape
button to return to the From entry screen.
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2-28 Compaq StorageWorks TL881/TL891 Family MiniLibrary System Reference Guide
When you press the
Enter
button, the following screen appears. If the source is
a drive, the word Unload appears in place of the word Load on line 4.
From: Slot4 To:DLT0
Load In Progress
When the load or unload operation is finished, the Default screen reappears.
Inserting and Removing Cartridges
When inserting cartridges, make sure that the slot you intend to use is not
already reserved in the system map for a cartridge in a drive. The best way to
avoid conflicts is to unload all drives, either through your host computer
software or by using the LOAD/UNLOAD command on the Main menu,
described in the previous section.
The tape magazine must be removed from the module in order to insert or
remove cartridges. To insert or remove the magazine, the following conditions
must be met:
■
The Magazine security lock must be unlocked, using the key supplied
with the module (Figure 2-8 and Table 2-8). When the Magazine
security lock is locked, the
module is installed in a reasonably secure environment, you can elect to
leave the magazine security lock in the unlocked position.
Unlock/Open
button has no effect. If the
■
Media locking on the Security menu must be disabled.
■
The host computer must allow medium removal. The host computer can
enable or disable the
Unlock/Open
button using the SCSI PREVENT
ALLOW MEDIUM REMOVAL command. When you press the
Unlock/Open
button, the message Magazine Locked appears.
The Expansion Unit must be ready, but not executing a command.
IMPORTANT:
cannot be inserted or removed unless the Ready light is on. To remove the magazine
when a failure prevents the Ready light from lighting, see the section “Emergency
Magazine Removal.”
When you enter Menu Mode, the Ready light goes out. The magazine
Page 62
Figure 2-8. Magazine in place
Operation 2-29
1
2
SHR-1691
Table 2-8
Magazine In Place
Figure Legend Description
1
2
Magazine security lock
Unlock/Open
button
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2-30 Compaq StorageWorks TL881/TL891 Family MiniLibrary System Reference Guide
Removing a Magazine
The following screens help you remove a magazine.
Load/Unload
Show Status Menu
Maintenance Menu
Configuration Menu
Maintenance Menu
Configuration Menu
Show History Menu
Security Menu
Unlock All Panels
Unlock All Media
Lock All Panels
Lock All Media
Unlock All Media
In Progress
Emergency Magazine Removal
If a fault occurs that prevents removal of a magazine, turn the power off for 30
seconds. Power up while continuously pressing the
the button until all of the indicators on the control panel light, then go out.
Release the button. The magazine can now be removed.
If you are unsuccessful in removing the magazine using this procedure,
contract your technical support representative for further advice.
button. Continue to hold
Page 64
Inserting Cartridges into the Magazine
A full magazine is shown in Figure 2-9 (see Table 2-9). Insert cartridges so
that the label end with the write protect switch is outward, with the write
protect switch toward the bottom of the magazine. The lowest-numbered
cartridge slot in the magazine is closest to the handle.
1
3
Operation 2-31
2
Figure 2-9. 10-slot tape magazine with cartridges installed
Table 2-9
10-Slot Tape Magazine (Cartridges Installed)
Figure Legend Description
1
2
3
Label
Slot 0
Write protect switch
SHR-1692
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2-32 Compaq StorageWorks TL881/TL891 Family MiniLibrary System Reference Guide
Inserting a Magazine
The following screens help you insert a magazine.
Load/Unload
Show Status Menu
Maintenance Menu
Configuration Menu
Maintenance Menu
Configuration Menu
Show History Menu
Security Menu
Unlock All Panels
Unlock All Media
Lock All Panels
Lock All Media
Unlock All Media
In Progress
Lock All Media
In Progress
Page 66
MiniLibrary Base Module
The front panel of the Base Module is nearly identical to the Expansion Unit.
It includes a power switch for the module, the magazine door, the magazine
security lock, and the
control panel, shown in Figure 2-2, has one more LED indicator than the
Expansion Unit. Figure 2-10 shows the Base Module front panel (Table 2-10).
Unlock/Open
button with its Locked indicator. The
1
2
3
U
se
Clean
D
riv
er
e
Lo
F
ader
a
u
lt
F
ault
Operation 2-33
4
Figure 2-10. Base module front panel
Table 2-10
Base Module Front Panel
Figure Legend Description
1
2
3
4
5
6
10-cartridge magazine
Magazine security lock
Control panel
Unlock/Open
Locked indicator
Power switch
5
button
6
SHR-1678
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2-34 Compaq StorageWorks TL881/TL891 Family MiniLibrary System Reference Guide
Tape Requirements
The MiniLibrary system uses ECMA-approved, ANSI proposed-standard DLT
tape cartridges. The DLT tape cartridge is a four-inch square plastic cartridge.
DLT tapes are available in three types, each with varying length and capacity,
as listed in Table 2-11.
Table 2-11
DLTtape Types
DLTtape
Type
III 10 GB 500,000 20 years 1100
IIXT 15 GB 1,000,000 30 years 1600
IV 20 GB (DLT4000)
Native Capacity Head Passes Tape Life Tape Length (ft)
1,000,000 30 years 1800
35 GB (DLT7000)
40 GB (DLT8000)
Cartridge Handling and Storage
A DLT tape cartridge should be stored vertically until you want to use it. Do
not expose a cartridge to moisture or direct sunlight. Maintain a clean,
dust-free working and storage environment.
If a DLT tape cartridge is dropped:
■
Inspect the cartridge carefully before you insert it into a MiniLibrary
System magazine or any drive.
■
Shake the cartridge while listening for the sound of a broken part. Any
rattling sound makes a cartridge unfit for use.
■
Inspect the case for distortion or cracks.
■
Inspect the leader by opening the cartridge door as shown in Figure 2-11
(see Table 2-12). The leader should be positioned as shown in view 1,
and should protrude at about a five-degree angle from the case. If the
leader is out of position, do not use the cartridge; damage to the drive
could result.
Under certain conditions, a DLT tape might stick to the drive read/write head
during operation. Damage to media, failure of commands or batch jobs to
Page 68
Operation 2-35
execute, with resulting errors or hangs, failure to unload, and apparent need to
swap out the drive are a few such conditions.
DLT tape cartridges should be stored vertically, in their original translucent plastic
NOTE:
boxes, until you want to reuse them and after they have been removed from tape drives.
When tapes are stored in an environment different from that of the tape drive,
ensure that they are acclimatized, by moving them to a location in close
proximity to the drive before attempting to use them. Ideally, tapes should be
allowed to acclimate for a time equal to the duration of their storage away
from the drive, or 24 hours, whichever is less.
Reports have verified that sticking occurs almost immediately with older, used
tapes which have been stored at 68°F (20°C) and 75% humidity, when those
tapes are used in a drive kept at a higher temperature and lower humidity.
High tape humidity causes sticking from hydrolysis, a degradation of the tape
which can be reversed by storing the tape for a while in a dry environment.
Test conditions (cool, damp tapes and warm, dry drives) have produced
stiction at will, but other conditions can also cause it. Remember to
acclimatize tapes before use. Long-term storage specifications are more
stringent than those for shorter periods. Cartridges intended for long-term
archiving shall be stored in room conditions of 73°F +/-9 (23°C +/-5) at 50%
+/-10% relative humidity.
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2-36 Compaq StorageWorks TL881/TL891 Family MiniLibrary System Reference Guide
1
Figure 2-11. DLT tape cartridge
Write Protection
The write protection switch of a DLT tape cartridge is also shown in Figure
2-11. To enable data recording, slide the write protect switch to the right so
that no orange color is visible through the window in the write protect switch
2. To write protect the DLT tape cartridge, slide the write protect switch to
the left until the orange indicator shows through the window on the write
protect switch 3.
2
Table 2-12
DLT Tape Cartridge
Figure Legend Description
1
2
3
Leader
Write protect OFF
Write protect ON
3
SHR-1694
Page 70
Barcode Labels
Barcode labels are included with the MiniLibrary and Expansion Unit.
Additional labels can be ordered (see Appendix B). The label slips into the slot
adjacent to the write-protect switch on each tape cartridge. The code used can
be Code 39, Codebar, 2-of-9, standard 2-of-5, or interleaved 2-of-5, with a
length of 8 digits. Minimum element width is 0.03 in (07.5 mm).
MiniLibrary System Components
There are four basic components in the MiniLibrary system:
■
The MiniLibrary Base Module
■
The MiniLibrary Expansion Unit (master)
■
The MiniLibrary Data Unit
■
The PTM
The Expansion Unit can move media freely within itself and between the
MiniLibrary Base Modules and the Data Units via the PTM.
In the MiniLibrary system, you can combine modules to provide the right
combination of capacity and performance for your requirements. The
architecture lets you change or add to the mix of modules to optimize
throughput, capacity, or both as your storage requirements change.
Operation 2-37
When connected as a system, the robotics in MiniLibrary Base Modules and
Data Units operate from Expansion Unit commands. The host computer(s) are
not dependent on the internal geometry of the system, or on the actions or
capabilities of any of the slave modules. The Expansion Unit presents, to the
host(s), a single SCSI medium changer device with a single SCSI Medium
Transport element, several SCSI storage elements equal to the number of
cartridge magazine slots, several SCSI import/export elements specified
during configuration of the Expansion Unit, and a number of SCSI data
transfer elements equal to the total number of drives in the system.
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2-38 Compaq StorageWorks TL881/TL891 Family MiniLibrary System Reference Guide
Storage Architecture
The MiniLibrary architecture is uniquely suited and designed for expanding
storage needs. The MiniLibrary architecture enables the robotics in each of the
MiniLibrary components to exchange cartridges with the PTM, and integrates
the robotics in the individual components and the PTM into a single
high-performance library robotics system.
The MiniLibrary is easily modified, by adding modules and extending the
PTM, to adapt to expanding storage needs. You can add drives for faster
performance or magazine space for greater capacity, as needed. At power-up,
the MiniLibrary updates the system map, signaling the host of the need for
expansion.
The Expansion Unit
The master 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 residing in the system,
including bar code data, if the modules are equipped with bar code readers. All
necessary system control operations can be performed from the control panel
of the Expansion Unit, as well as from the host through software. The SCS
interface for the library robotics is designed for high-speed communication
with the host, and is available in SCSI-2, Fast SCSI-2, Fast Wide SCSI,
single-ended Low Voltage Differential (LVD) SCSI, and High Voltage
Differential SCSI-2 configurations.
In addition to system control functions, the Expansion Unit has a 16-cartridge
magazine with a random access robotic mechanism. The module robotics
moves cartridges between the PTM and any of the 16 cartridge storage
locations.
You can designate a magazine in one of the slave modules as a mail slot for
inserting or removing one or more single cartridges, which implements the
SCSI IMPORT/EXPORT commands.
A magazine reserved for import/export service can not be used for data storage.
NOTE:
Page 72
MiniLibrary Base Module
The MiniLibrary Base Module has either one or two DLT drives and a
10-cartridge magazine with a random access robotic mechanism.
Data Unit
The Data Unit has a 16-cartridge magazine, a random access robotic
mechanism, and no tape drives. The module robotics, under control of the
Expansion Unit, moves cartridges between the PTM and any of the 16
cartridge storage locations.
SCSI Interface Configurations
The MiniLibrary system standard SCSI interface is a Fast Wide SCSI interface
using high-density 68-pin D-series connectors.
SCSI Bus Performance Considerations
The data transfer rate of the DLT MiniLibrary is dependent on the type of
drives and on the SCSI bus configuration. The bandwidth of the SCSI bus is
limited.
Operation 2-39
Drives
With a standard SCSI interface, modules equipped with:
■
DLT20/40 drives can provide a maximum sustained native transfer rate
of 1.5 MB/s. With both drives operating, the DLT20/40 native transfer
rate is 3.0 MB/s.
■
DLT35/70 drives can provide a maximum sustained native transfer rate
of 5 MB/s. With both drives operating, the DLT35/70 native transfer
rate is 10 MB/s.
■
DLT40/80 drives can provide a maximum sustained native transfer rate
of 6 MB/s. With both drives operating, the DLT40/80 native transfer
rate is 12 MB/s.
The rates for compressed data are the native rates multiplied by the
compression factor, which depends on file content, but averages
approximately 1.7.
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2-40 Compaq StorageWorks TL881/TL891 Family MiniLibrary System Reference Guide
Internal Cabling Configuration
The differential MiniLibrary system is wired in an independent-bus SCSI
configuration; 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 are daisy-chained to a single SCSI bus.
The single-ended table-top unit has the robotics and first DLT drive
daisy- chained internally to shorten the total internal cable length. The second
drive is on an independent bus.
Bus Length Limitations
The single-ended SCSI-2 bus is limited to 19 ft (6 m) in length; single-ended
fast SCSI-2 bus is limited to 10 ft (3 m) overall length. LVD SCSI bus length
is 39 ft (12 m). In contrast, differential SCSI-2 and fast SCSI-2 buses can be
up to 82 ft (25 m) long.
Physical Configuration
All modules in a MiniLibrary system must be mounted in a rack except for the
table top module version. When a system is ordered, all the modules are
supplied in a rack-mount configuration. Modules cannot be operated alone
except for the MiniLibrary Base Module, which can be converted to operate as
a free-standing 10-slot library.
System Expansion
A DLT MiniLibrary system can be expanded in capacity or performance or
both by adding or removing components. Associated with each component is a
section of the PTM. The MiniLibrary storage system firmware integrates the
robotics in the individual modules and the Expansion Unit PTM into a single
high-performance library robotics system.
Free-Standing MiniLibrary Base Modules Conversion
You can add existing MiniLibrary Base Modules to your system by changing
firmware, resetting internal jumpers, removing the pass-through cover plate,
and in some cases converting from desktop to rackmount. These tasks should
be performed by qualified service personnel. Contact your technical support
representative for instructions.
Page 74
Features
Operation 2-41
Figures 2-12 through 2-16 show some of the external features of the
Expansion Unit, the MiniLibrary Base Module, and the Data Unit (see Tables
2-13 through 2-17).
1
2
3
4
5
Figure 2-12. Expansion unit and data unit front view
Table 2-13
Expansion Unit and Data Unit Front View
Figure Legend Description
1
2
3
4
5
6
16-cartridge magazine
Magazine security lock
Control panel
Unlock/Open
Locked indicator
Power switch
button
6
SHR-1677
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2-42 Compaq StorageWorks TL881/TL891 Family MiniLibrary System Reference Guide
1
2
3
Use
Cleaner
D
riv
e
Load
F
a
u
er
lt
F
au
lt
4
5
Figure 2-13. MiniLibrary base module front view
Table 2-14
MiniLibrary Base Module Front View
Figure Legend Description
1
2
3
4
5
6
10-cartridge magazine
Magazine security lock
Control panel
Unlock/Open
button
Locked indicator
Power switch
6
SHR-1678
Page 76
4
3
2
Figure 2-14. MiniLibrary base module 10-cartridge magazine
Table 2-15
MiniLibrary Base Module 10-Cartridge Magazine
Figure Legend Description
Operation 2-43
1
SHR-1680
1
2
3
4
Slot 0
Front label slide slot
Barcode label slide slot (not used)
Slot 9
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2-44 Compaq StorageWorks TL881/TL891 Family MiniLibrary System Reference Guide
1
5
4
3
Figure 2-15. Expansion unit rear view
Expansion Unit Rear View
Figure Legend Description
1
2
3
4
5
PTM motor drive
Power connector
Slave module robotics interface connectors
Library robotics SCSI interface
Flash connector
2
SHR-1681
Table 2-16
Page 78
Operation 2-45
1
Figure 2-16. MiniLibrary base module rear view
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 let you
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.
4
3
2
Table 2-17
MiniLibrary Base Module Rear View
Figure Legend Description
1
2
3
4
SCSI bus interface:
MiniLibrary (left two connectors)
Drive 0 (middle two connectors)
Drive 1 (right two connectors)
Expansion unit interface
Power connector
Fan
SHR-1682
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2-46 Compaq StorageWorks TL881/TL891 Family MiniLibrary System Reference Guide
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 you. In the MiniLibrary Expansion Unit, status information is
available for the entire system. The slave modules display other information as
needed for localizing malfunctions.
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 adjusts 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 can be protected from tampering by any of three means:
A key-operated magazine security lock must be unlocked before the
1.
magazine can be removed,
An electronic combination lock operated by using buttons on the
2.
Expansion Unit control panel.
Issuance by the host of a SCSI PREVENT MEDIUM REMOVAL
3.
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 2-14.
Page 80
Operation 2-47
The differential unit shown in Figure 2-17 has two ports (Table 2-18). A
single-ended version has four ports.
1
2
Figure 2-17. Data unit rear view
Figure Legend Description
Integral Fan Cooling
A single forced-air fan is mounted inside each module to provide optimum
cooling for critical parts, and to prevent the drive and robotics electronics,
motors, and power supply from overheating.
1
2
1
SHR-1683
Table 2-18
Data Unit Rear View
Power connector
Expansion unit interface
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2-48 Compaq StorageWorks TL881/TL891 Family MiniLibrary System Reference Guide
Library Robotics
The DLT MiniLibrary system features library robotics that can load any of the
cartridges stored in any magazine in the system into any of the DLT tape
drives, moving cartridges among as many as six modules within the DLT
MiniLibrary system. The robotics design utilizes the Compaq Library
Robotics, which is known for its reliability.
Bar Code Reader
The optional bar code reader can be mounted on the cartridge shuttle in each
module. It reads bar code labels attached to each cartridge, and maintains the
bar code data in memory as part of the library system map. Upgrade kits to add
the bar code reader are available for the MiniLibrary Expansion Unit, the
MiniLibrary Base Module and the Data Unit.
Page 82
Introduction
This chapter describes the complete MiniLibrary system installation process,
from planning and parts identification to mechanical installation, cabling, and
configuration.
Installation Overview
There are three basic areas for installing a MiniLibrary System: mechanical
installation, cabling, and configuration.
Chapter
3
Installation
The mechanical installation consists of:
■
Assembling the Pass-Through Mechanism (PTM). Note that the
two-module version is factory assembled
■
Installing the Expansion Unit, the MiniLibrary Base Module(s) and the
Data Units into a Compaq rack
■
Installing the PTM in a rack
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Compaq StorageWorks TL881/TL891 Family MiniLibrary System Reference Guide
Cabling consists of:
■
Interconnecting the Data Units and MiniLibrary Base Modules with the
Expansion Unit
■
Connecting the Expansion Unit to the PTM motor
■
Connecting the MiniLibrary Base Module drive SCSI buses to host
SCSI interfaces
■
Connecting the Expansion Unit to a host SCSI interface
■
Terminating the buses properly
Configuration consists of using the Configure menu to customize the
configuration options to your particular application.
The remainder of this chapter describes each of these steps.
Planning Your Installation
The MiniLibrary System is designed for mounting in a Compaq rack,
StorageWorks metric rack, or a standard 19-inch EIA/RETMA rack. Each
module is shipped with the inner rails installed.
Every Compaq MiniLibrary System includes:
■
One Expansion Unit
■
One expandable PTM
■
One to five MiniLibrary Base Modules or Data Units, each with one or
two DLT drives
The Expansion Unit has 16 slots and no drives, and serves as controller of the
MiniLibrary System. The MiniLibrary Base Modules each have 10 slots plus
one or two drives. The Data Unit, which acts as a storage unit, contains 16
slots and no drives. The Expansion Unit, the Data Unit, and the MiniLibrary
Base Module(s) each occupy 7 in (18 cm) of rack space height.
The PTM is composed of a motor drive assembly plus sections of track whose
combined length is equal to the combined heights of the Expansion Unit plus
the MiniLibrary Base Modules. One extension section of track is needed for
the installation of each additional MiniLibrary module.
Page 84
Positioning the Modules
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 Data Unit
MiniLibrary Base Modules are of secondary importance, as they serve mainly
to help localize system failures. When installed, the motor drive assembly of
the PTM is directly behind the Expansion Unit.
Data units and MiniLibrary Base Modules can be installed anywhere below
the Expansion Unit, in any order. There might be a slight performance
advantage in making the MiniLibrary Base Modules contiguous, but gaps are
permitted. The size of a gap is limited by the fact that some number of 7 in
(18 cm) must bridge each gap of PTM track sections. For safety, available
cover plates should be installed on all PTM sections that are not connected to
MiniLibrary System 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 PTM track segments and cover plates equal to the length of the gap.
Mechanical Installation
Installation
3-3
Assembly of the PTM requires experience working with moderately complex
mechanisms, and the ability to follow directions carefully.
Identifying the Parts of the PTM
Locate and identify the PTM internal and external parts. The PTM is made up
of the following external parts, shown in Figure 3-1 (see Table 3-1).
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Compaq StorageWorks TL881/TL891 Family MiniLibrary System Reference Guide
5
6
5
Figure 3-1. PTM external parts
Figure Legend Description
4
4
6
Table 3-1
PTM External Parts
1
2
4
3
SHR-1701
1
2
3
4
5
6
Motor drive section
Extension sections
Pass-through base with idler pulley
Tie bars
Support brace
Angle brackets
Page 86
Installation
Follow the instructions in the section “Mechanical Installation of the
Expansion and Base Modules.” After the rack slides and the Base Modules are
in place, and after the PTM is assembled, you will install the PTM in the rack
by attaching the support braces to the rear of the outer rail slides using the
angle brackets.
The internal parts you will need to recognize during assembly are shown in
Figures 3-2 and 3-3 (see Table 3-2).
3-5
Figure 3-2. PTM car (front view)
SHR-1702
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Compaq StorageWorks TL881/TL891 Family MiniLibrary System Reference Guide
1
2
Figure 3-3. Car rear view showing belt block
SHR-1703
Table 3-2
Car Rear View Showing Belt Block
Figure Legends Description
1
2
The belt block comes fastened to the back of the car with two captive screws.
Carefully note the orientation of the block with respect to the car, as shown in
Figure 3-3.
Belt block
Captive screws
Page 88
Orientation of Parts During Assembly
To determine the orientation of an extension section, examine the flanges on
the edges of the section, and note that they are dissimilar. Position the section
so that its orientation matches that of the elevator base.
Figure 3-4 shows a typical PTM assembly (see Table 3-3). The motor drive
section always goes on top, and the base section with the idler pulley always
goes on the bottom. Extension sections are mounted between the motor drive
section and the base section. All sections are joined together with tie bars. For
systems up to four modules, two support braces are needed: one attached to the
motor drive and one to the base section. For larger systems, a third support
brace should be mounted near the center of the PTM.
Installation
2
1
3-7
1
Figure 3-4. PTM assembled
3
4
5
1
SHR-1704
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Compaq StorageWorks TL881/TL891 Family MiniLibrary System Reference Guide
Table 3-3
PTM Assembled
Figure Legend Description
1
2
3
4
5
Preparing to Assemble the PTM
You will need a clean, flat work area such as a table or workbench. The
surface should be long enough to support the full height of the PTM. The
height is equal to the height of the stack of modules in your system plus any
gaps you intend to include in the stack. Use the following procedure to
assemble your PTM.
Assembling the PTM
In most cases, you have received a pre-assembled PTM. If its length is correct
for your system, proceed to the section “Mechanical Installation of the
Expansion and MiniLibrary Base Modules” and continue on to the end of the
chapter. If you need to add sections, please take a few minutes to read this
section and the section “Installing the Belt,” before proceeding to “Adding to
an Existing PTM.”
Support brace
Motor drive section
Extension section
Tie bar
Base section
References to left and right refer to the position of the part when the PTM is
NOTE:
assembled and mounted in the rack, as viewed from the front of the rack.
Place the base section, with the inside facing down, overhanging the
1.
right end of the work area, with the bottom plate of the section toward
the right (see Figures 3-1 and 3-4).
Place each of the extension sections, with the inside facing down, in a
2.
row aligned edge-to-edge beginning with the base section. The bottoms
of the sections should be toward the right. Disregard the motor drive at
this time.
Page 90
Installation
Center one of the support braces across the rear of the base section over
3.
the holes on the rear surface of that section.
Insert two M4 x 20 mm Phillips sems screws through the holes in the
4.
support brace into the holes in the base section, and tighten.
Place pairs of tie bars so that they straddle all of the joints where
5.
sections come together. Be sure that the beveled edge is toward the
inside corner of the sections.
Install two M3 x 20 mm Phillips sems screws through each tie bar into
6.
the threaded holes in the flanges of the extrusion sections. Only finger
tighten the screws at this time. Insert two M3 x 20 mm sems screws
through each tie bar into the side of the extrusion sections and then
finger tighten.
Firmly press the neighboring sections together while tightening the two
7.
M3 x 20 mm screws through each tie bar into the flanges of the sections.
Alternately tighten the screws into the flanges and those into the sides of
the extrusions to ensure that each tie bar is drawn into the corner of the
extrusion.
3-9
IMPORTANT:
Inspect the joint to see that the sections are well aligned, with minimal
8.
Be careful not to over-tighten these screws.
irregularities and gaps.
Repeat steps 6, 7, and 8 for each pair of sections. It might be necessary
9.
to use suitable blocks to support the row of sections so that neither the
motor housing nor the bottom flange of the base section touches the
work surface while you are connecting the motor drive section.
10. Center one of the support bars across the rear of the motor drive section
over the holes on the rear surface of that section.
11. Insert two M4 x 20 mm Phillips sems screws through the holes in the
support brace into the holes in the motor drive section, and then tighten.
Go to the next section, “Installing the Belt.”
Page 91
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Compaq StorageWorks TL881/TL891 Family MiniLibrary System Reference Guide
Installing the Belt
Turn the assembled PTM over so that the motor points upward (see
1.
Figures 3-5 through 3-9).
Locate the tensioner ramp in the base section. Press the spring until the
2.
hole in the tensioner ramp is aligned with a hole in the base section
(Figure 3-5). Insert a 0.050 in Allen wrench or a paper clip through the
holes. This sets the idler pulley for zero belt tension.
SHR-1705
Figure 3-5. Threading the belt through the base section
Locate the length of toothed belt that was enclosed with the extension
3.
section (Table 3-4).
Page 92
Installation
Table 3-4
Belt Length for Various System Sizes
Number of Modules Length of Belt
2 27 in (68 cm)
3 41 in (104 cm)
4 55 in (140 cm)
5 69 in (175 cm)
6 83 in (211 cm)
See Table 3-4 for the required belt length for your system. After
4.
verifying the length specified, cut the belt between teeth.
With the toothed side of the belt toward you, position the right end of
5.
the belt about halfway along the PTM.
Thread the left end of the belt counter-clockwise around the motor drive
6.
pulley (Figure 3-6).
3-11
Figure 3-6. Threading the belt through the drive section
SHR-1706
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Compaq StorageWorks TL881/TL891 Family MiniLibrary System Reference Guide
Thread the belt from the motor drive counter-clockwise around the idler
7.
pulley and back to the right end (Figure 3-5).
Holding the ends of the belt as shown in Figure 3-7, the two ends should
8.
be touching or very slightly overlapping.
SHR-1707
Figure 3-7. Checking belt length
Loosen the four screws that hold the belt retaining plates to the block.
9.
Slide the ends of the belt under the plate until they engage the teeth on
the block. Both ends of the belt should be visible through the gap
between the plates as shown in Figure 3-8 (see Table 3-5). Set the belt
so there is only a small space between the ends of the belt
(approximately 1/32 of an inch).
Page 94
2
1
Figure 3-8. Belt block with belt in place
Table 3-5
Belt Block with Belt in Place
Figure Legend Description
3
SHR-1708
Installation
3-13
1
2
3
10. Tighten the four screws that hold the belt retaining plates.
11. Pull out the paper clip previously installed in the base section. This
Belt
Gap visible
Block
applies the proper tension to the belt.
12. Locate the two captive screws in the car. Screw them backward one turn
to line them up and then screw them approximately one thread into the
bracket in the car so they are held in an upright position.
13. Position the belt block at least six inches from the motor drive pulley.
14. Locate the spring-loaded wheels of the car. Engage the spring-loaded
wheels in the track, while positioning the car so the captive screws are
directly over the holes in the belt block (Figure 3-9 and Table 3-6).
IMPORTANT:
Figure 3-9 omits the door on the car for clarity. Do not remove the door.
Page 95
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Compaq StorageWorks TL881/TL891 Family MiniLibrary System Reference Guide
2
1
Figure 3-9. Aligning the captive screws with the block
SHR-1709
Table 3-6
Aligning the Captive Screws with the Block
Figure Legend Description
1
2
15. To steady the belt block, grasp the belt several inches from the block
and push toward the back of the track until the block is pressed firmly
against the back of the track. While holding the belt with one hand,
compress the springs and swing the car downward until the remaining
wheels are aligned with their groove in the track.
16. While continuing to press the belt block against the back of the track,
release the car so that the stationary wheels engage their groove in the
track.
Press down
Captive screws
Page 96
17. While continuing to press the belt block against the back of the track,
begin to tighten the captive screws. When both screws are partially
threaded into the belt block, release the belt and finish tightening the
screws. Be sure that the block is fully seated against the bracket on the
car. Close and secure the door on the car.
18. Using nylon button rivets, install covers over any exposed
PTM sections that are not covered by modules.
See Appendix E, “Additional Information on Pass-Through Section Covers.”
NOTE:
Go to the section “Mechanical Installation of the Expansion and MiniLibrary
Base Modules.”
Adding to an Existing PTM
Before reading this section, familiarize yourself with the parts and procedures
by reading the two preceding sections. To add to an existing PTM, you must
first partly disassemble it, then make the necessary changes as described in the
preceding sections. Use the following procedure for disassembly.
Locate the covers over the drive motor section and the base assembly.
1.
Note that the covers are held in place by nylon button rivet fasteners.
Using a suitable thin-bladed tool, pry up the cover until the fasteners can
be removed. Set the covers aside, and save the fasteners for re-use.
Installation
3-15
Place the PTM on a suitable work surface with the motor at the left and
2.
pointed upward. Open the door of the car to gain access to the captive
screws (Figure 3-9). Do not remove the door. Loosen the captive screws
until they are disengaged from the belt block.
Grasp the closed side of the car and pull it toward you so as to compress
3.
the springs underneath the car. When the wheels on the closed side are
clear of the track, lift the car from the track and set it aside.
Locate the tensioner ramp in the base section (Figure 3-5). Compress the
4.
spring until the hole in the tensioner ramp is aligned with a hole in the
base section. Insert a 0.050 in Allen wrench or a paper clip through the
holes. This sets the idler pulley for zero belt tension.
Loosen the four screws on the belt block far enough to pull the ends of
5.
the belt free of the block (Figure 3-8). Pull the belt free of the motor
drive assembly and the base section and set the belt aside.
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Compaq StorageWorks TL881/TL891 Family MiniLibrary System Reference Guide
Turn the PTM over and support it so that neither the motor nor the
6.
flange at the bottom of the base assembly is touching the work surface.
Remove the eight screws holding a pair of tie bars in place (Figures 3-1
7.
and 3-4). Separate the PTM at that joint.
You can now add sections as needed and install a new belt as described in the
sections “Assembling the PTM” and “Installing the Belt.”
Mechanical Installation of the Expansion and MiniLibrary Base Modules
The Expansion Unit and the MiniLibrary Base Module come with a set of
Compaq inner rails installed. Note that the Compaq rackmount kit (P/N
968458-102) is packed with the module.
The Expansion Unit and Base Module(s) can be rack-mounted in a:
■
Compaq rack
■
Standard 19-in EIA/RETMA rack
■
StorageWorks metric rack
RETMA and StorageWorks racks require a MiniLibrary table-top-to-rackmount kit,
NOTE:
metric/RETMA (Part Number 120882-B21). Contact your Compaq sales representative for
more information.
This section describes how to separate the rail slides, followed by the
rackmount instructions.
Follow the directions in the shipping container to unpack the module(s). Save
the packing materials for re-use in case you need to return the module(s) for
repairs.
The inner slide is attached to the module by means of three screws. Remove
the packing tape from the slides, and separate each set of slides as described in
the following section.
Page 98
Rail Slide Separation
See Figure 3-10 and Table 3-7. Separate the inner rail slide from the
1.
middle and outer rail slides.
1
4
5
4
5
2
Installation
3
3-17
Figure 3-10. Separating the rail slides
Separating a Rack Slide
Figure Legend Description
1
2
3
4
5
Inner rail slide
Middle rail slide
Outer rail slide
Screws (two at each end of the outer rail slide)
Washers (two at each end of the outer rail slide)
SHR-1710
Table 3-7
Page 99
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Compaq StorageWorks TL881/TL891 Family MiniLibrary System Reference Guide
Identify and orient the parts of the rail slides and hardware needed for
2.
your rack. Figure 3-10 shows the parts required for standard
rackmounting.
All hardware required for rackmounting the Expansion Unit and Base Module into
NOTES:
a Compaq rack is supplied. You will need a #2 Phillips screwdriver.
The left and right rail slides are alike, so there is no risk of confusing the parts on
reassembly.
The front of the cabinet, and front rails in this text refers to where the module face will be
exposed (typically opposite from the main power source location). The main power source
location thus becomes the rear of the cabinet, and where the rear rails exit.
Locate the screw holes in the front and rear rails of the cabinet or
3.
equipment rack where the module is to be installed.
CAUTION:
when the module is installed in the rack. It is advisable to allow 2 in (5 cm) of
clearance behind the rear panel of the module.
Refer to the Compaq rackmounting template, which is included with
4.
The cooling fan at the rear of the module must not be obstructed
each module. Note that the inner slide has two sets of holes. When
installing the inner slides, make sure you use the upper set of holes.
Page 100
Installing the PTM in the Rack
If you have not done so, install the angle brackets onto the outer rail
1.
slides of the top and bottom modules. Use one screw for each angle
bracket as shown in Figure 3-11.
Installation
3-19
Figure 3-11. Installing the PTM in the rack
Position the PTM against the back of the installed modules so that the
2.
support braces rest on the previously installed angle brackets (Figure
3-11). Install a screw and washer through the rear hole in each angle
bracket into the support braces. Do not tighten.
Look closely at the right flange of the PTM (left side as viewed from the
3.
rear of the rack) as shown in the inset in Figure 3-11. At the top module,
position the PTM horizontally so that the edge of the flange fits exactly
into the slot on the rear of the chassis of the top and bottom modules.
Make sure that the bottom edge of the PTM motor drive section is flush
4.
with the bottom surface of the module chassis. If necessary, adjust the
vertical position of the angle brackets.
SHR-1714
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