IBM eServer xSeries 135, Installation Manual

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© Copyright IBM Corp. 2000
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Chapter 6. Solving problems
This section provides basic troubleshooting information to help you resolve some
common problems that might occur while setting up your server.
If you cannot locate and correct the problem using the information in this section, see
the "Solving problems" section in the User’s Reference on the IBM xSeries Documentation
CD and the "Server " flowchart in the front of this book for additional
information.
Note: Changing the preinstalled software configuration in any way, including
upgrading preinstalled software, applying service packs, and reinstalling
preinstalled software components, is not supported. To correct problems with
a preinstalled software component, you must backup your user and system
data and then use the recovery enablement diskette and Recovery CD to
restore the preinstalled programs.
Diagnostic tools overview
If you are unable to connect to your appliance, first confirm that the problem is not
being caused by a network connectivity issue. When you have confirmed network
connectivity, contact IBM service or attach a monitor, mouse, and keyboard to your
appliance and troubleshoot the appliance server using the following tools and
procedures.
The following tools are available to help you identify and resolve hardware-related
problems:
• Beep codes and error messages
The power-on self-test (POST) generates beep codes to indicate successful test
completion or the detection of a problem.
— One beep indicates successful completion of POST.
— More than one beep indicates that POST detected a problem. Error messages
also appear during startup if POST detects a hardware-configuration
problem.
See “POST beep code descriptions” on page 26 and “POST error messages” on
page 26 for more information.
• Troubleshooting chart
This chart lists problem symptoms, along with suggested steps to correct the
problems. See the “Troubleshooting chart” on page 28 for more information.
• Event/error logs
The POST Error Log contains the three most recent error codes and messages
that the system generated during POST. The System Event/Error Log contains
all error messages issued during POST and all system status messages from the
Netfinity Advanced System Management Processor.
To view the contents of the error logs, start the Configuration/Setup Utility
program; then, select Event/Error Logs from the main menu.
• Diagnostic programs and error messages
The server diagnostic programs are stored in upgradable read-only memory
(ROM) on the system board. These programs are the primary method of testing
the major components of your server.