• Follow the suggested actions in the order in which they are listed in the Action column until the problem is
solved.
• See
Chapter 4 “Parts listing, Lenovo System x3550 M3 Type 4254 and 7944” on page 403 to determine which
components are customer replaceable units (CRU) and which components are field replaceable units (FRU).
• If an action step is preceded by “(Trained service technician only),” that step must be performed only by a
Trained service technician.
• Go to the IBM support website at
http://www.ibm.com/supportportal/ to check for technical information, hints,
tips, and new device drivers or to submit a request for information.
Symptom
Action
Multiple hard disk drives are
offline.
1. Review the storage subsystem logs for indications of problems within the
storage subsystem, such as backplane or cable problems.
2. See
“Problem determination tips” on page 401.
A replacement hard disk drive
does not rebuild.
1. Make sure that the hard disk drive is recognized by the adapter (the green hard
disk drive activity LED is flashing).
2. Review the SAS/SATA adapter documentation to determine the correct
configuration parameters and settings.
A green hard disk drive activity
LED does not accurately
represent the actual state of
the associated drive.
If the green hard disk drive activity LED does not flash when the drive is in use, run
the DSA Preboot diagnostic programs to collect error logs (see
“Running the
diagnostic programs” on page 318
).
• If there is a hard disk drive error log, replace the affected hard disk drive.
• If there is no disk drive error log error log, replace the affected backplane.
An amber hard disk drive
status LED does not accurately
represent the actual state of
the associated drive.
1. If the amber hard disk drive LED and the RAID adapter software do not indicate
the same status for the drive, complete the following steps:
a. Turn off the server.
b. Reseat the SAS/SATA adapter.
c. Reseat the backplane signal cable and backplane power cable.
d. Reseat the hard disk drive.
e. Turn on the server and observe the activity of the hard disk drive LEDs.
2. See
“Problem determination tips” on page 401.
Hypervisor problems
Use this information to solve hypervisor problems.
364
System x3550 M3Problem Determination and Service Guide
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