Compaq MSL5026 User manual

Compaq StorageWorks
First Edition (June 2001)
Part Number 231908-001
Compaq Computer Corporation
MSL5026 Library Pass-Through Mechanism (PTM)
Reference Guide

© 2001 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 of their respective companies.
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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 provided “as is” without warranty of any kind and is subject to change
without notice. The warranties for Compaq products are set forth in the express limited warranty
statements accompanying such products. Nothing herein should be construed as constituting an additional
warranty.
Compaq service tool software, including associated documentation, is the property of and contains
confidential technology of Compaq Computer Corporation. Service customer is hereby licensed to use
the software only for activities directly relating to the delivery of, and only during the term of, the
applicable services delivered by Compaq or its authorized service provider. Customer may not modify or
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destroy or return the software and associated documentation in its possession.
Printed in the U.S.A.
Compaq StorageWorks MSL5026 Library Pass-Through Mechanism (PTM) Reference Guide
First Edition (June 2001)
Part Number 231908-001

Contents
About This Guide
Document Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v
Text Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi
Symbols in Text . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
Symbols on Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii
Cabinet Stability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix
Getting Help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix
Compaq Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix
Compaq Website . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x
Compaq Authorized Reseller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x
Chapter 1
Introduction
Preparing for the PTM Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–2
PTM Components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–2
PTM Required Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–2
Chapter 2
Installing the PTM
Planning the Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–2
Positioning the Libraries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–3
Installing the Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–4
PTM Base Unit Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–5
Installing a Single PTM Base Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–6
Adding Extensions
to a PTM Base Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–10
Installing a Longer Belt to an Extended PTM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–15
Installing the Extended PTM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–19

iv Compaq StorageWorks MSL5026 Library Pass-Through Mechanism (PTM) Reference Guide
Cabling the PTM and Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–20
Multi-Unit Library Configuration
(Single Master and Slave) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–21
Multi-Unit Library Configuration
(Single Master, Fail-Over Master, and Slave) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–22
Chapter 3
Configuring the PTM
Configuring the Master Library . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–1
Configuring the Slave Libraries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–5

About This Guide
This guide is designed to be used as step-by-step instructions for installing and
configuring a Compaq StorageWorks™MSL5026 Library Pass-Through Mechanism
(PTM).
Document Structure
This guide contains the following information:
Chapter 1: Introduction
■Preparing for the PTM Installation
■PTM Components
■PTM Required Tools
Chapter 2: Installing the PTM
■Planning the Installation
■Positioning the Libraries
■Installing the Router
■PTM Base Unit Description
■Installing a Single PTM Base Unit
■Adding Extensions to a PTM Base Unit

vi Compaq StorageWorks MSL5026 Library Pass-Through Mechanism (PTM) Reference Guide
■Installing a Longer Belt to an Extended PTM
■Installing the Extended PTM
■Cabling the PTM and Router
Chapter 3: Configuring the PTM
■Configuring the Master Library
■Configuring the Slave Libraries
Text Conventions
This document uses the following conventions to distinguish elements of text:
Keys Keys appear in boldface. A plus sign (+)
between two keys indicates that they
should be pressed simultaneously.
USER INPUT User input appears in a different typeface
and in uppercase.
FILENAMES File names appear in uppercase italics.
Menu Options,
Command Names,
Dialog Box Names
These elements appear in initial capital
letters.
COMMANDS, DIRECTORY NAMES,
and DRIVE NAMES
These elements appear in uppercase.
Type When you are instructed to type
information, type the information without
pressing the Enter key.
Enter When you are instructed to enter
information, type the information and
then press the Enter key.

About This Guide vii
Symbols in Text
These symbols may be found in the text of this guide. They have the following meanings:
WARNING: Text set off in this manner indicates that failure to follow directions in the
warning could result in bodily harm or loss of life.
CAUTION: Text set off in this manner indicates that failure to follow directions could
result in damage to equipment or loss of information.
IMPORTANT: Text set off in this manner presents clarifying information or specific instructions.
NOTE: Text set off in this manner presents commentary, sidelights, or interesting points of
information.

viii Compaq StorageWorks MSL5026 Library Pass-Through Mechanism (PTM) Reference Guide
Symbols on Equipment
The following icons may be located on equipment in areas where hazardous conditions
may exist.
Any surface or area of the equipment marked with these symbols indicates
the presence of electrical shock hazards. Enclosed area contains no
operator-serviceable parts.
WARNING: To reduce the risk of injury from electrical shock hazards, do not
open this enclosure.
Any RJ-45 receptacle marked with these symbols indicates a Network
Interface Connection (NIC).
WARNING: To reduce the risk of electrical shock, fire, or damage to the
equipment, do not plug telephone or telecommunications connectors into
this receptacle.
Any surface or area of the equipment marked with these symbols indicates
the presence of a hot surface or hot component. If this surface is contacted,
the potential for injury exists.
WARNING: To reduce the risk of injury from a hot component, allow the
surface to cool before touching.
Power supplies or systems marked with these symbols indicate the
equipment is supplied by multiple sources of power.
WARNING: To reduce the risk of injury from electrical shock,
remove all power cords to completely disconnect power from the
system.

About This Guide ix
Any product or assembly marked with these symbols indicates that the
component exceeds the recommended weight for one individual to handle
safely.
WARNING: To reduce the risk of personal injury or damage to the
equipment, observe local occupational health and safety requirements and
guidelines for manual material handling.
Cabinet Stability
WARNING: To reduce the risk of personal injury or damage to the equipment, be sure
that:
■The leveling jacks are extended to the floor.
■The full weight of the cabinet rests on the leveling jacks.
■The stabilizing feet are attached to the cabinet if it is a single cabinet installation.
■The cabinets are coupled together in multiple cabinet installations.
■Only one component is extended at a time. A cabinet may become unstable if
more than one component is extended for any reason.
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
In North America, call the CompaqTechnical Phone Support Center at
1-800-OKCOMPAQ. For continuous quality improvement, calls may be monitored or
recorded. 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 worldwide Technical Support Centers are listed on the Compaq
website. Visit the Compaq website at www.compaq.com.

xCompaq StorageWorks MSL5026 Library Pass-Through Mechanism (PTM) Reference Guide
Be sure to have the following information available before you call Compaq:
■Technical support registration number (if applicable)
■Product serial number
■Product model name and number
■Applicable error messages
■Add-on boards or hardware
■Third-party hardware or software
■Operating system type and revision level
Compaq Website
The Compaq website has information on this product as well as the latest drivers and Flash
ROM images. You can visit the Compaq website at 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, you can visit the Compaq website for locations and telephone numbers.

Chapter 1
Introduction
The Compaq StorageWorks Pass-Through Mechanism (PTM) enables the transfer of tape
cartridges between Compaq StorageWorks MSL5026 Libraries. A single PTM system can
be used to connect up to seven libraries, creating a multi-unit tape library configuration.
The PTM installation procedure consists of the following steps:
■Preparing for the PTM installation
■Installing the PTM
■Cabling the PTM
■Configuring the PTM
NOTE: An MSL series PTM is not compatible with either a TL series or SSL series PTM.

1–2 Compaq StorageWorks MSL5026 Library Pass-Through Mechanism (PTM) Reference Guide
Preparing for the PTM Installation
Before beginning the installation procedure:
1. Using the packing slip, verify the components that came with the PTM Upgrade Kit.
2. Make sure that you have the required tools.
3. Make sure the library is functional. Refer to Chapter 4 of the Compaq StorageWorks
MSL5026 Library User Guide.
PTM Components
The following components typically ship with a PTM Upgrade Kit:
■PTM (base unit)
■Router/hub and bracket
■Primary motor cable
■AC power cord
■Ethernet cable(s)
■5U extension(s)
■10U extension(s)
■Firmware upgrade
PTM Required Tools
The following tools are required to perform a PTM installation:
■#2 Phillips screwdriver (Stubby or right-angle)
■#1 Phillips screwdriver
■Flat-blade screwdriver
■0.050-inch Allen wrench (recommended)
■Scissors or knife

Chapter 2
Installing the PTM
This chapter describes how to install a Pass-Through Mechanism (PTM) for a Compaq
StorageWorks MSL5026 Library. Sections in this chapter include:
■Planning the Installation
■Positioning the Libraries
■Installing the Router
■PTM Base Unit Description
■Installing a Single PTM Base Unit
■Adding Extensions to a PTM Base Unit
■Installing a Longer Belt to an Extended PTM
■Installing the Extended PTM
■Cabling the PTM and Router

2–2 Compaq StorageWorks MSL5026 Library Pass-Through Mechanism (PTM) Reference Guide
Planning the Installation
A PTM can be mounted in a Compaq storage cabinet.Two PTM variations are available:
■A factory-assembled PTM (base unit) that can be used to connect two MSL5026
libraries (one master and one slave).
■The PTM base unit plus extensions with a combined length equal to the number of
MSL5026 libraries installed in a Compaq storage cabinet (one master and up to six
additional slaves).
NOTE: Two unique extension sizes are available: 5 Unit (5U) and 10 Unit (10U).
If PTM extensions are required, first assemble the entire PTM system before installing it
in a multi-unit library configuration.
IMPORTANT: Prepare each library in a multi-unit library configuration for PTM installation by
removing the PTM cover plates, drive shoe assembly 1, and/or blank drive shoe covers while
they are outside of the Compaq storage cabinet. This simplifies the installation process.
CAUTION: Do not apply power to any library. Attempting to connect or disconnect a
PTM to a library that has power applied can damage the library and the PTM base unit
PCB.

Installing the PTM 2–3
Positioning the Libraries
The PTM must be attached to the top two libraries in a multi-unit library configuration.
Additional slave libraries can be installed anywhere below the first two libraries, in any
order. Note that additional standalone libraries may be installed above the multi-unit
library configuration.
The top library in the multi-library configuration (primary master) senses the position of
each library during initialization at power-up. If the primary master library ever fails, a
fail-over library (secondary master) can assume control of the remaining libraries in the
multi-unit library configuration. Note that this feature is planned for a future release and
will require a hardware and firmware upgrade.
If you plan on leaving gaps between libraries, make sure each gap does not exceed the
width of one extension. All libraries must be positioned in multiples of 5 Units (5U) for
proper vertical alignment.
IMPORTANT: It is recommended that all MSL5026 libraries in a multi-unit library configuration
use the same drive types. Check with your application software vendor if you want to mix drive
types in a multi-unit library configuration to manage partitioning by tape technology.

2–4 Compaq StorageWorks MSL5026 Library Pass-Through Mechanism (PTM) Reference Guide
Installing the Router
An eight-port router [seven port connectors and one Wide Area Network (WAN)
connector] is included in the PTM Upgrade Kit. It comes pre-assembled in its own bracket
for installation at the side of a Compaq storage cabinet. The router is used to connect each
installed library to a WAN via the 10-BaseT connector on the library controller board for
coordinating PTM operation and communication.
To install the router in a Compaq storage cabinet:
1. Carefully install the router into a Compaq storage cabinet. Make sure both tabs at the
bottom of the bracket slide into their mating holes in the Compaq storage cabinet (see
Figure 2–1).
Figure 2–1. Installing the router into a Compaq storage cabinet
2. Secure the router to the Compaq storage cabinet using the two supplied screws (see
Figure 2–1).
3. Connect the supplied AC power cable to the router and to the Compaq storage
cabinet’s AC power outlet. Do not turn the router on at this time.
4. Attach the 10-BaseT cables to the router for each library. See the section on “Cabling
the PTM and Router,” for connecting instructions.
5. Attach a network cable to the router. See the section on “Cabling the PTM and
Router,” for connecting instructions.
Front of
Library

Installing the PTM 2–5
PTM Base Unit Description
The PTM base unit comes factory assembled and contains the following components (see
Figure 2–2). Note that the PTM base unit only supports two libraries in a multi-unit library
configuration.
1Drive Motor Pulley
2Drive Belt
3Belt Block Bracket Access Cutout
4Media Elevator Car
5Belt Block and Brackets
6Thumbscrews (Top, Middle, and Bottom)
7Belt Tensioner Ramp and Idler Pulley
8Primary Motor Cable
9Primary Motor Cable Connector
:Fail-Over Motor Cable (Planned for Future Release)
qFail-Over Motor Cable Connector
wPrinted Circuit Board (PCB), Motor Controller
eDrive Motor
Figure 2–2. PTM base unit
7
3
5
8
w
2
e
6
4
1
6
:
6
q
9

2–6 Compaq StorageWorks MSL5026 Library Pass-Through Mechanism (PTM) Reference Guide
Installing a Single PTM Base Unit
To install a single PTM base unit:
1. Install two libraries, as shown in Figure 2–3, following the instructions in the Compaq
StorageWorks MSL5026 Library Overview and Installation or Rackmount Conversion
Kit.
IMPORTANT: If PTM cover plate(s) are not removed, do not secure any library front bezel to the
Compaq storage cabinet until the PTM installation is complete.
CAUTION: Do not apply power to either library. Attempting to connect or disconnect a
PTM base unit to a library that has power applied can damage the library and the PTM
base unit PCB.
Figure 2–3. Library installation
NOTE: After installing the PTM base unit, secure each slave library to the Compaq storage
cabinet using its front bezel thumbscrews.

Installing the PTM 2–7
2. Remove the blank panel or drive shoe assembly 1 from the bay adjacent to the PTM
cover plate opening (see Figure 2–4).
a. Loosen the captive retaining screws at the top and bottom of the blank panel or
drive shoe assembly 1.
b. Remove the blank panel or pull straight back on the drive shoe assembly 1 handle
to unplug it. Note that some effort might be required to overcome the initial
resistance of unplugging the drive shoe assembly from the hot-plug connector. A
gentle wiggling motion may aid removal.
c. Fully disengage drive shoe assembly 1. Continue to slide drive shoe assembly 1 out
while supporting it until the tape drive hardware clears the back of the library
hot-plug connector.
Figure 2–4. Accessing the drive shoe assembly 1 bay
SHR-9102

2–8 Compaq StorageWorks MSL5026 Library Pass-Through Mechanism (PTM) Reference Guide
3. Using a #2 Phillips screwdriver, remove the screws that secure the PTM cover plate to
each library chassis (see Figure 2–5).
NOTE: If you purchased a PTM with your libraries, remove the PTM cover plate on each library
prior to installing them into a Compaq storage cabinet. Otherwise, each library needs to be
pulled out sequentially from the front of the Compaq storage cabinet so you can gain access to
the top PTM cover plate screw on a lower library.
Figure 2–5. Removing the PTM cover plate