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Solving SAS hard disk drive problems
For any SAS error message, one or more of the following devices might be causing
the problem:
v A failing SAS device (adapter, drive, or controller)
v An improper SAS configuration
For any SAS error message, make sure that the SAS devices are configured
correctly.
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 56.
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 or mouse problems
To check for keyboard or mouse 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
52
BladeCenter LS21 Type 7971 and LS41 Type 7972: 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/mouse select button LED on the front of the blade server
is lit, indicating that the blade server is connected to the shared keyboard and
mouse.
v The keyboard or mouse 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).
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