HP P4000 HP Smart Array SAS controllers for Integrity servers support guide - Page 115

Case 2: the replacement disk has failed, Case 3: another disk in the array has failed

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1. Back up as much data as possible from the logical drive. WARNING! Do not remove the disk that has the media error. This causes the logical drive to fail, which could result in data loss. 2. Restore data from the backup. Writing data to the location of the unreadable sector often eliminates the error. 3. Remove and reinsert the replacement disk. This restarts the rebuild process. If the rebuild process still terminates abnormally: 1. Delete and recreate the logical drive. 2. Restore data from the backup. Case 2: the replacement disk has failed Verify that the replacement disk is of the correct capacity and is a supported model. If these factors are not the cause of the problem, use a different disk as the replacement. Case 3: another disk in the array has failed A disk that has recently failed can sometimes be made temporarily operational again by cycling the server power: 1. Shut down and power off the server. 2. Remove the replacement physical disk (the one undergoing a rebuild), and reinstall the disk that is being replaced. 3. Power on the server. If the newly failed disk seems to be operational again: 1. Back up unsaved data. 2. Remove the disk that was to be replaced, and reinstall the replacement disk. The rebuild process restarts. 3. When the rebuild process finishes, replace the newly failed disk. If the newly failed disk has not become operational: 1. Remove the disk that was to be replaced, and reinsert the replacement physical disk. 2. Replace the newly failed disk. 3. Restore data from backup. Abnormal termination of a rebuild 115

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1.
Back up as much data as possible from the logical drive.
WARNING!
Do not remove the disk that has the media error. This causes the logical drive
to fail, which could result in data loss.
2.
Restore data from the backup. Writing data to the location of the unreadable sector often
eliminates the error.
3.
Remove and reinsert the replacement disk. This restarts the rebuild process.
If the rebuild process still terminates abnormally:
1.
Delete and recreate the logical drive.
2.
Restore data from the backup.
Case 2: the replacement disk has failed
Verify that the replacement disk is of the correct capacity and is a supported model. If these
factors are not the cause of the problem, use a different disk as the replacement.
Case 3: another disk in the array has failed
A disk that has recently failed can sometimes be made temporarily operational again by cycling
the server power:
1.
Shut down and power off the server.
2.
Remove the replacement physical disk (the one undergoing a rebuild), and reinstall the disk
that is being replaced.
3.
Power on the server.
If the newly failed disk seems to be operational again:
1.
Back up unsaved data.
2.
Remove the disk that was to be replaced, and reinstall the replacement disk. The rebuild
process restarts.
3.
When the rebuild process finishes, replace the newly failed disk.
If the newly failed disk has not become operational:
1.
Remove the disk that was to be replaced, and reinsert the replacement physical disk.
2.
Replace the newly failed disk.
3.
Restore data from backup.
Abnormal termination of a rebuild
115