l Preface
Hitachi Unified Storage Hardware Service Guide
Document organization
Thumbnail descriptions of the chapters are provided in the following table.
Click the chapter title in the first column to go to that chapter. The first page
of every chapter or appendix contains links to the contents.
Document conventions
The following typographic conventions are used in this document.
Chapter/Appendix
Title
Description
Chapter 1, Verifying
component failures
Describes the ways hardware fault conditions are brought
to the attention of Hitachi Unified Storage system users.
Chapter 2, Hardware
description
Describes the connectors, LEDs, and switches on the
Unified Storage system hardware.
Chapter 3, Procedures
before and after
replacing components
Describes the steps to take prior to replacing a component
on Hitachi Unified Storage systems.
Chapter 4, Replacing
drives
Provides instructions for replacing a drive in Hitachi
Unified Storage systems.
Chapter 5, Replacing a
cache backup battery
Provides instructions for replacing the cache backup
battery in Hitachi Unified Storage systems.
Chapter 6, Replacing a
Fan Module
Provides instructions for replacing the Fan Module in
Hitachi Unified Storage systems.
Chapter 7, Replacing a
Power Unit
Provides instructions for replacing the Power Unit in
Hitachi Unified Storage systems.
Chapter 8, Adding and
replacing controllers
Provides instructions for replacing controllers in Hitachi
Unified Storage systems.
Chapter 9, Replacing
cache memory
Provides instructions for replacing cache memory in
Hitachi Unified Storage systems.
Chapter 10, Replacing
a Host I/O Board or
Host I/O Module
Provides instructions for replacing a Host I/O Board in
Hitachi Unified Storage systems.
Chapter 11, Replacing
the Host connector
Provides instructions for replacing the Host Connector in
Hitachi Unified Storage systems.
Chapter 12, Replacing
the Drive I/O Module
Provides instructions for replacing the Drive I/O Module in
Hitachi Unified Storage systems.
Chapter 13, Replacing
the I/O Module (ENC)
Provides instructions for replacing the I/O Module (ENC) in
Hitachi Unified Storage systems.
Chapter 14, Replacing
the SAS (ENC) cable
Provides instructions for replacing the SAS (ENC) cable in
Hitachi Unified Storage systems.
Chapter 15, Upgrading
a Hitachi Unified
Storage 130 system
Describes how to upgrade a Hitachi Unified Storage 130
system to a Hitachi Unified Storage 150 system.
Chapter 16, General
maintenance and best
practices
Covers maintenance information for Hitachi Unified
Storage systems.
Chapter 17,
Troubleshooting
Provides troubleshooting suggestions related to Hitachi
Storage Navigator Modular 2 and the replacement of
components in Hitachi Unified Storage systems.
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