Drive Problems; Intermittent Problems - IBM power PS700 Problem Determination And Service Manual

Drive problems

Identify hard disk drive problem symptoms and what corrective actions to take.
v Follow the suggested actions in the order in which they are listed in the Action column until the problem is
solved.
v See Chapter 3, "Parts listing, Type 8406," on page 229 to determine which components are CRUs and which
components are FRUs.
v If an action step is preceded by "(Trained service technician only)," that step must be performed only by a
trained service technician.
Symptom
Not all drives are recognized by
the disk drive firmware or
operating system.
System stops responding
during drive operating system
commands to test or look for
bad blocks.

Intermittent problems

Identify intermittent problem symptoms and corrective actions.
v Follow the suggested actions in the order in which they are listed in the Action column until the problem is
solved.
v See Chapter 3, "Parts listing, Type 8406," on page 229 to determine which components are CRUs and which
components are FRUs.
v If an action step is preceded by "(Trained service technician only)," that step must be performed only by a
trained service technician.
Symptom
A problem occurs only
occasionally and is difficult to
diagnose.
192
Power Systems: Problem Determination and Service Guide for the IBM Power PS700 (8406-70Y)
Action
1. Run diagnostics
2. Reseat the drive
3. Run the diagnostics again
4. If the remaining drives are recognized, replace the drive that you removed
with a new one.
1. Run diagnostics
2. Reseat the drive
3. Run the diagnostics again
4. If the drive diagnostic test runs successfully, replace the drive you removed
with a new one.
Action
1. Check the Advanced Management Module event log for errors
2. Make sure that:
v When the blade server is turned on, air is flowing from the rear of the blade
server at the blower grill. If there is no airflow, the blower is not working.
This causes the blade server to overheat and shut down.
v Ensure that the self configuring SCSI device (SCSD) bus and devices are
configured correctly.