IBM xSeries 440 8687, Руководство по техническому обслуживанию аппаратной части

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Diagnostics
This section provides basic troubleshooting information to help resolve some
common problems that might occur with the server.
Diagnostic tools overview
The following tools are available to help you identify and resolve hardware-related
problems:
v POST beep codes, error messages, and error logs
The power-on self-test (POST) generates beep codes and messages to indicate
successful test completion or the detection of a problem. See “POST” for more
information.
v Light path diagnostics feature
Use the light path diagnostics feature to identify system errors quickly.
v Diagnostic programs and error messages
The server diagnostic programs are stored in upgradable read-only memory
(ROM) on the I/O board. These programs are the primary method of testing the
major components of the server. See “Diagnostic programs and error messages”
on page 57 for more information.
Note: The diagnostic programs and error messages are specific to each server.
When running diagnostics and reading error messages of two merged
servers, be sure that you know which server gave the error before
attempting any repairs or changing any settings.
POST
When you turn on the server, it performs a series of tests to check the operation of
server components and some of the options installed in the server. This series of
tests is called the power-on self-test, or POST.
If POST finishes without detecting any problems, a single beep sounds, and the first
screen of your operating system or application program appears.
If POST detects a problem, more than one beep sounds, or an error message
appears on your screen. See “Beep symptoms” on page 152 and “POST error
codes” on page 181 for more information.
Notes:
1. If you have a power-on password set, you must type the password and press
Enter, when prompted, before POST will continue.
2. A single problem might cause several error messages. When this occurs, work
to correct the cause of the first error message. After you correct the cause of
the first error message, the other error messages usually will not occur the next
time you run the test.
3. When turning on the 16-way configuration (models 1VX, 2VX, 3VX only) you
might hear a beep code of one long beep and two short beeps if no video
device is connected to the secondary server. This is an acceptable action.
© Copyright IBM Corp. 2001
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