Instruction manual

About This Book
This book is for people who operate a system that has one or more 2104 Model DU3 or
TU3 connected to it.
Throughout this book, service representative means a person who has been authorized
by your organization to maintain your 2104 Model DU3 or TU3.
Chapter 1 describes the 2104 Models DU3 and TU3, their controls, and how to use
them.
Chapter 2 describes how to add disk drive modules to a 2104 Model DU3 or TU3 that is
already installed as part of your system.
Chapter 3 describes what to do if you have a problem with your 2104 Model DU3 or
TU3. It tells you how to replace particular failed components, such as disk drive
modules, and what to report if you need to call your service representative for
assistance.
Appendix A gives additional information about using a 2104 Model DU3 or TU3 that is
attached to a RISC system.
Appendix B gives a translation of all danger and caution notices contained in this book.
An index is provided at the back of this book.
If You Need More Information
Other books that you might need are:
v Expandable Storage Plus : 2104 Model DU3 Installation Guide, 86 A1 15EF
v Expandable Storage Plus : 2104 Model TU3 Installation Guide,
v Expandable Storage Plus : 2104 Models DU3 and TU3 Service Guide, 86 A1 17EF
v The Operator Guide for your system
v The User’s Guide for your using-system SCSI attachment (for example, your SCSI
adapter)
v The Site and Hardware Planning Information for your system
v The Problem Solving Guide and Reference for your system.
Trademarks
The following items are trademarks of International Business Machines Corporation in
the United States, or other countries, or both:
v AIX
v IBM
v RS/6000
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