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Chapter 3. Diagnostics
This section provides basic troubleshooting information to help you resolve some
common problems that might occur with your BladeCenter T unit.
If you cannot locate and correct the problem using the information in this section,
see Appendix A, “Getting help and technical assistance,” on page 111 for more
information.
Diagnostic tools overview
The following tools are available to help you identify and solve hardware-related
problems:
v Troubleshooting charts
These charts list problem symptoms and steps to correct the problems. See the
Chapter 6, “Symptom-to-FRU index,” on page 89 for more information.
v Diagnostic programs and error messages
The built-in self-test (BIST) program checks the BladeCenter T unit during startup
and generates error messages if problems are found.
The system diagnostic program, Real Time Diagnostics Version 1.3, tests the
major components of your BladeCenter T unit. The Real Time Diagnostics
software is available from the IBM Support Web site at http://www.ibm.com/pc/
support. It is run from the IBM Director Management Console window (under the
BladeCenter T task in the Task panel).
To obtain the Real Time Diagnostics program, go to the following Web site:
http://www.ibm.com/pc/support, and complete the following steps:
1. Select Servers from the list at the left of the window.
2. Select Downloadable files from the list at the left of the window.
3. In the Downloadable files by category list, select Diagnostic.
4. Click the entry for Real Time Diagnostics, and follow the instructions on that
page.
v Light Path Diagnostics feature
Use the Light Path Diagnostics feature to identify system errors quickly. On the
BladeCenter T unit, the Light Path Diagnostics feature consists of the LEDs on
the front and rear of the BladeCenter T unit and on the front of the modules and
blade servers.
Identifying problems using the Light Path Diagnostics feature
If the system-error LED on the system LED panel on the front or rear of the
BladeCenter T unit is lit, one or more error LEDs on the BladeCenter T components
also might be on. These LEDs help identify the cause of the problem.
This section provides the information to identify problems that might arise during
installation using the Light Path Diagnostics feature.
To locate the actual component that caused the error, you must locate the lit error
LED on that component.
© Copyright IBM Corp. 2004 35