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Chapter 5 - Troubleshooting
128
Common Problems and Interpreting the LEDs
Symptom
Fan Status LED is
Failed cooling fan.
illuminated steady
(amber).
Fan Status LED is
Enclosure cabinet over-
flashing (amber).
temperature condition.
Faulty thermal sensor.
Drive Status LED is
Fault in the Fibre Channel
illuminated amber.
loop.
Channel Status LED is
Controller(s) not ready.
flashing green.
Reason
Replace cooling fan canister.
Check for obstructed air flow. Ensure
that the air flow intake at the front
bezel is not obstructed and the
exhaust air flow is not obstructed at
the rear of the enclosure.
Add the jumpers to manually override
the fan automatic speed control, and
verify if the LED stops flashing. Refer
to "Enclosure Fan Speed Control" on
page 115 for more details.
Replace cooling fan canister.
Replace the enclosure.
Disk drive loop has a fault, refer to
"Common Fibre Loop/Bus Problems"
on page 125. Replace the faulty disk
drive.
Wait approximately 2 to 3 minutes.
Reset the controllers.
Power cycle the enclosure.
Possible bad RAID Controller.
Solution
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