IBM TotalStorage FAStT200, Installation And User Manual

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© Copyright IBM Corp. 2000
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Chapter 6. Solving problems
This chapter contains information to help you solve some of the simpler problems that
you might have with your storage server. It contains the problem symptoms and error
messages along with suggested actions to take to resolve the problem.
This chapter also provides instructions on how to obtain service and technical
assistance for your storage server and other IBM products that you might plan to use.
Troubleshooting
Always use the storage-management software to diagnose storage server problems
and component failures. You can use this table to find solutions to problems that have
definite symptoms.
Table 7. Storage server troubleshooting
Problem indicator Component Possible cause Possible solutions
Amber LED on Drive CRU Drive has failed Replace the drive that has failed.
Fan CRU Fan failure Replace the fan that has failed.
RAID controller Fault
LED RAID controller has
failed If the RAID controller Fault LED is on,
replace the RAID controller.
Expansion port bypass
LED GBIC port empty No corrective action is needed if the
system is properly configured.
Fibre Channel cable
is not attached to the
expansion unit No corrective action is needed.
No incoming signal
detected Reattach the GBICs and Fibre Channel
cables. Replace input and output GBICs or
cables as necessary.
Front panel General system error Indicates that a Fault LED somewhere on
the storage server has turned on. (Check
for amber LEDs on CRUs.)
Amber LED is on and
green LED off Power-supply CRU Power switch is
turned off or ac
power failure Turn on all power-supply power switches.
Amber and green
LEDs on Power-supply CRU Power supply failure Replace the failed power-supply CRU.
All green LEDs off All CRUs Subsystem power is
off Check that all storage-server power cords
are plugged in and the power switches are
on. If applicable, check that the main circuit
breakers for the rack are turned on.
AC power failure Check the main circuit breaker and ac
outlet.
Power supply failure Replace the power supply.
Midplane failure Have the storage server serviced.
Amber LED flashing Drive CRUs Drive rebuild or
identity is in process No corrective action is needed.