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Recovering from defunct drives: If the defunct drives are not part of an array, contact
your service representative.
If a physical drive fails in an array or multiple physical drives fail in separate
arrays (one physical drive per array), complete the following steps:
1. Replace each defunct physical drive. The controller starts the rebuild operation
when it detects the removal and reinsertion of a drive that is part of an array.
Note: (For a configuration that contains a hot-spare drive) If you replace a
failed physical drive, it is not necessary to position the new physical
drive on the same SCSI channel and SCSI ID as the original hot-spare
drive. The replacement physical drive is automatically incorporated into
the configuration as a hot-spare drive. Here is an example of how this
works:
a. The original configuration consists of a RAID level-5 logical drive
composed of four physical drives. The physical drives are connected
to SCSI channel 1; they are assigned SCSI IDs 0, 1, 2, and 3. SCSI ID
3 is a hot-spare drive.
b. The physical drive at Channel 1, SCSI ID 2, fails; the logical drive
enters the critical state.
c. The hot-spare drive at Channel 1, SCSI ID 3, is rebuilt into the array.
d. You remove the failed physical drive at Channel 1, SCSI ID 2, and
replace it with a new physical drive. The new physical drive at
Channel 1, SCSI ID 2, is automatically assigned to be a hot-spare
drive.
2.
If a rebuild operation is in progress, wait until the rebuild is complete.
Otherwise, go to step 3.
Note: If you are replacing multiple defunct drives, you must wait for each
rebuild operation to complete before starting subsequent rebuild
operations.
3. Verify the cables, physical drives, and controllers are installed properly.
4. Attempt to rebuild the defunct physical drive by performing a hot-swap
rebuild.
5. If the hot-swap rebuild fails, contact your service representative.
More information
v Rebuilding a defunct drive
v Rebuilding a hot-swap drive
v Manually rebuilding a defunct drive
v Changing the rebuild rate (action)
v Unblocking a logical drive (action)
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v RAID level-1
v RAID level-5
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142 ServeRAID Manager Installation and User's Guide