About Diagnostic Failures

A component will fail to start if any uBoot test fails (on the CMM or SP) or if BIOS POST encounters a fatal error on the blade host. The symptoms of a diagnostic failure vary depending on whether diagnostics have failed on the CMM or on a blade (either the SP or the host). Once you have determined that startup diagnostics have failed, you may be able to get information about the failure by check event log or by use show command.

Note

If you experience a diagnostic failure such that the CMM is not available – and you are, therefore, unable to access the system at all – contact Sun Field Service for assistance.

The table below describes what happens when a diagnostic failure occurs.

Diagnostic Failure

What Happens

uBoot fails on the CMM

The CMM's OK LED continues to blink slowly; it will not transition to steady green.

The failure is reported to fault management on a second CMM, if a second CMM is present and operational.

The failed CMM will not start.

uBoot fails on the SP

The failure is reported to fault management on the CMM.

The Service Action Required LED on the blade is illuminated.

The SP will not start.

Fatal BIOS POST failure on the host

The failure is reported to fault management on the CMM.

The Service Action Required LED on the blade is illuminated.

The host operating system will not boot.