Solving Shared Bladecenter Resource Problems; Keyboard Problems - IBM BladeCenter JS21 Types 8844 Service Manual

Solving shared BladeCenter resource problems

Problems with BladeCenter shared resources might appear to be in the blade
server. The following sections provide procedures to help you isolate blade server
problems from shared BladeCenter resource problems. If the problem is thought to
be with a shared resource, see the Problem Determination and Service Guide or
the Hardware Maintenance Manual and Troubleshooting Guide for your
BladeCenter unit and other BladeCenter component documentation for additional
information. If the problem cannot be solved, see "Solving undetermined problems"
on page 135.
To check the general function of shared BladeCenter resources, complete the
following operations:
v Make sure that:
v Check if the problem is being experienced with more than one blade server.
v Try the blade server in a different blade bay.
v Try a known-good blade server in the blade bay.

Keyboard problems

To check for keyboard problems, complete the following steps until the problem is
solved:
1. Make sure that:
2. Check for correct management-module operation (see the documentation for
3. Replace the keyboard.
4. Replace the management module (see the documentation for your BladeCenter
If these steps do not resolve the problem, it is likely a problem with the blade
server. See "Keyboard problems" on page 117.
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BladeCenter JS21 Types 7988 and 8844: Problem Determination and Service Guide
– The BladeCenter unit has the required power modules installed and is
connected to a working power source.
– Power management has been correctly set for your BladeCenter unit
configuration.
Perform a test of the function on a known-good blade server.
v Both the blade server and the monitor are turned on.
v The keyboard/video select button LED on the front of the blade server is lit,
indicating that the blade server is connected to the shared keyboard.
v The keyboard cable is securely connected to the active BladeCenter
management-module.
v The keyboard or mouse works with another blade server.
your BladeCenter unit).
Note: Some BladeCenter unit types have several management-module
components that might need to be tested or replaced (see the Installation Guide
for your management module for more information).
unit).