Digital Equipment DIGITAL Server 7100 1200, Service Maintenance Manual

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Troubleshooting
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RAID Troubleshooting
Problem Possible Cause Action
SBB fault LED lit. Disk drive failed. Replace disk drive.
SBB activity and fault LEDs
lit. Disk drive hung or has
failed. Replace disk drive.
SBB fault LED flashing. Disk drive failed and is
spinning down. Replace disk drive.
SBB fault status is either on
or off; fault status LED
flashing. Disk drive is active and
spinning down due to a
fault. Correct the fault or replace the disk
drive.
Replaced SBB drive does
not spin up to speed. SBB drive not seen by
RAID controller. Manually rebuild the SBB drive.
Remove the SBB drive, wait 20
seconds, reinsert SBB drive. Wait
one minute and then rebuild the
SBB drive.
Multiple SBB drives have
failed. No power available. Restore power, run the RAID
configuration utility and change the
state of any failed (FLD) SBB drive
to optimal (OPT).
Run the RAID configuration utility
and check for bad blocks on the
SBB drives. Repair any bad
blocks.
SBB drive not seen by
RAID adapter. SCSI cable not connected.
Incorrect SCSI termination.
Duplicate SCSI IDs on the
bus.
Defective SBB drive.
SBB drive improperly
inserted.
Defective RAID adapter
Check all SCSI connections.
Properly terminate the SCSI bus.
Check SBB drive SCSI ID settings.
Replace SBB drive.
Reinsert SBB drive.
Replace the RAID adapter.