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Diagnostic tools overview
The following tools are available to help you identify and resolve hardware-related
problems:
v POST beep codes and error messages
v Error log
v ServerGuide error symptoms
v SCSI error messages
v Diagnostic programs and error messages
v Light Path Diagnostics
v Error symptom charts
v Customized support page
The power-on self-test (POST) generates beep codes and messages to indicate
successful test completion or the detection of a problem. See "POST error logs"
on page 28 for more information.
The POST error log contains the three most recent error codes and messages
that the system has generated during POST. The System Error Log contains all
the error messages that were issued during POST.
To view the contents of the error logs, start the Configuration/Setup Utility
program; then, select Error Logs from the main menu. See "Viewing the System
Error log" on page 31 for more information.
ServerGuide error symptoms are explained at "ServerGuide error symptoms" on
page 28.
For information on SCSI errors, see "Small computer system interface messages"
on page 29 and "SCSI error codes" on page 147.
The server diagnostic programs are stored in read-only memory (ROM) on the
system board. These programs are the primary method of testing the major
components of your server. See "Diagnostic programs and error messages" on
page 29 for more information.
Your server has light-emitting diodes (LEDs) to help you identify problems with
server components. These LEDs are part of the Light Path Diagnostics that are
built into your server. By following the path of LEDs, you can quickly identify the
type of system error that occurred. See "Light Path Diagnostics" on page 34 for
more information.
These charts list problem symptoms, along with suggested steps to correct the
problems. See the "Error symptoms" on page 134 for more information.
You can create a customized support page that is specific to your hardware,
complete with Frequently Asked Questions, Parts Information, Technical Hints
and Tips, and Downloadable files. In addition, you can choose to receive
electronic mail (e-mail) notifications whenever new information becomes available
about your registered products.
After you register and profile your xSeries products, you can diagnose problems
using the IBM Online Assistant, and you can participate in the IBM discussion
forum. For more detailed information about registering and creating a customized
profile for your IBM products, go to the following addresses on the Web:
– http://www.ibm.com/pc/register
– http://www.ibm.com/pc/support
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Chapter 3. Diagnostics
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