Chapter 6. Solving Problems; General Checkout; Using The Diagnostic Hardware; Troubleshooting - IBM TotalStorage DS4300 Installation, User's, And Maintenance Manual

Chapter 6. Solving problems

This chapter contains information to help you solve some of the simpler problems
that you might have with your storage subsystem. It contains the problem indicators
and error messages along with suggested actions to take to resolve the problem.
For instructions on how to obtain service and technical assistance for your storage
subsystem and other IBM products, see "Getting information, help, and service" on
page xxii
Note: See the IBM TotalStorage DS4000 Hardware Maintenance Manual and

General checkout

Use the LEDs, the diagnostics and test information, and the Symptom-to-FRU index
to diagnose problems. The PD maps found in the IBM TotalStorage DS4000
Problem Determination Guide provide you with additional diagnostic aids.

Using the diagnostic hardware

The DS4300 Storage Subsystem comes with a wrap-plug adapter and LC coupler.
The wrap-plug adapter and LC coupler are used to identify fibre path problems. The
loopback and sendEcho tests are described in the IBM TotalStorage DS4000
Problem Determination Guide.

Troubleshooting

This section contains information to help you solve some of the problems you might
have with your storage subsystem. Table 17 contains the problem symptoms and
error messages, along with suggested actions to take to resolve problems.
Always use the DS4000 Storage Manager client to diagnose storage subsystem
problems and component failures and find solutions to problems that have definite
symptoms. You can use Table 6 which contains the problem symptoms, along with
suggested actions as a guide for troubleshooting problems in addition to the
DS4000 Storage Manager Recovery Guru in the Subsystem Management window.
Do not rely solely on Table 17 for a FRU replacement decision. In addition, do not
contact IBM Support unless the problem persists or the problem can not be
troubleshot using the information in Table 17 or the Recovery Guru procedures as
displayed in the DS4000 storage manager subsystem management window.
Table 17. Storage subsystem troubleshooting
Problem
indicator
Amber LED on
© Copyright IBM Corp. 2005, 2006
Problem Determination Guide for additional troubleshooting and debugging
procedures.
Component
Drive CRU
Fan CRU
Possible cause Possible solutions
Drive failure Replace the drive that has failed.
Fan failure Replace the fan that has failed.
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