Intermittent Problems - Lenovo ThinkServer TD100 Installation Manual

v Follow the suggested actions in the order in which they are listed in the Action column until the problem
is solved.
v See the parts listing in the Hardware Maintenance Manual to determine which components are customer
replaceable units (CRU) and which components are field replaceable units (FRU).
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 hard disk drive was not
detected while the operating
system was being started.
A hard disk drive passes the
diagnostic Fixed Disk Test but
the problem remains.

Intermittent problems

v Follow the suggested actions in the order in which they are listed in the Action column until the problem
is solved.
v See the parts listing in the Hardware Maintenance Manual to determine which components are customer
replaceable units (CRU) and which components are field replaceable units (FRU).
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.
Action
Reseat all hard disk drives and cables; then, run the hard disk drive diagnostic
tests again.
Run the diagnostic SCSI Attached Disk Test (see "Running the diagnostic
programs" in the Hardware Maintenance Manual).
Note: This test is available on servers that have RAID arrays that uses the
onboard SAS/SATA controller or servers that have SATA hard disk drives that are
connected to the onboard SAS/SATA controller.
Action
1. Make sure that:
v All cables and cords are connected securely to the rear of the server and
attached devices.
v When the server is turned on, air is flowing from the fan grille. If there is no
airflow, the fan is not working. This can cause the server to overheat and
shut down.
2. Check the system/event error log (see "Error logs" in the Hardware
Maintenance Manual).
Chapter 5. Solving problems
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