nStor NexStor 4700F Series, User Manual

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Chapter 5 - Troubleshooting
Common Problems and Interpreting the LEDs
59
Common Problems and Interpreting the LEDs
Symptom Reason Solution
Channel Status LED is
illuminated amber. Fault on the FC loop. Verify that the data cables are properly
connected and there is a valid H0L
and H1L Link LED illuminated.
Verify that the data cable is a known
good cable. Replace the data cable.
Verify that the FC HBA is functioning
properly.
Fault in a logical array. Replace the failed drive component of
the logical array. After the rebuild is
complete the LED should return to
steady green.
Power Supply Status
LED is illuminated
(amber). Power supply has failed.
Power supply turned off.
Replace the suspect faulty power
supply.
Ensure that all the power supply
switches are in their “On” position.
Power supply missing.
Loss of AC power to the
power supply.
Replace the missing power supply and
turn it on.
Verify that proper AC power is
available to the power supplies. If the
enclosure is plugged into a three-hole
grounded outlet, verify if power to the
outlet has been interrupted. This can
be accomplished by testing the outlet
with a known working appliance, like
a lamp.
Loss of DC power to the
power supply. Verify that proper DC power is
available to the power supplies. Test
the DC power feed system.
Fan Status LED is
illuminated steady
(amber). Failed cooling fan. Replace cooling fan canister.
Fan Status LED is
flashing (amber). Enclosure cabinet over-
temperature condition. 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 “Cooling Fan Module” on page 7 for
more details.
Replace cooling fan canister.
4700F.book Page 59 Wednesday, April 6, 2005 11:05 AM