Chapter 6. Diagnostics
Use this information to review the diagnostic tools that are available to help you
solve problems that might occur in the blade server.
Review the diagnostic tools that are available to help you solve problems that
might occur in the blade server.
Note: The blade server uses shared resources that are installed in the BladeCenter
unit. Problems with these shared resources might appear to be in the blade server
(see “Solving shared BladeCenter resource problems” on page 217 for information
about isolating problems with these resources).
If you cannot locate and correct a problem by using the information in this chapter,
see “Getting help and technical assistance,” on page 225 for more information.
Diagnostic tools overview
Use this overview to locate specific diagnostic tools to diagnose and solve
hardware-related problems.
The following tools are available to help you diagnose and solve hardware-related
problems:
v Troubleshooting tables
These tables list problem symptoms and actions to correct the problems. See
“Troubleshooting tables” on page 164
v Light path diagnostics
Use light path diagnostics LEDs on the system board to diagnose system errors.
If the system-error LED on the system LED panel on the front or rear of the
BladeCenter unit is lit, one or more error LEDs on the BladeCenter unit
components also might be lit. These LEDs help identify the cause of the
problem. For more information about the blade server error LEDs, see “Light
path diagnostics LEDs” on page 183.
v Dynamic System Analysis (DSA) Portable Edition diagnostic program
DSA tests the major components of the BladeCenter unit, including the
management modules, I/O modules, removable-media drives, and the blade
servers, while the operating system is running. For documentation and
download information for DSA, see http://www.ibm.com/systems/
management/. For more information about diagnostic programs and error
messages, see “Dynamic system analysis diagnostic programs and messages” on
page 185
Note: If you are unable to find the system-error logs in the blade server
firmware code, view the system-event log in the BladeCenter management
module.
v Dynamic System Analysis (DSA) Preboot diagnostic program
The DSA Preboot diagnostic programs are stored in read-only memory and
collect and analyze system information to aid in diagnosing server problems.
The diagnostic programs collect the following information about the server:
– Drive health information
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