Rebuilding A Defunct Drive - IBM Netfinity ServeRAID-3H Installation And User Manual

BCS ECS Explanation and possible recovery action
07 78 Explanation: Online/Rebuild, Ready/Standby, and Hot-Spare/Standby Hot-Spare drives are not
responding, and unidentified drives were found.
Action: Press F4, F5, or F10.
07 7C Explanation: Online/Rebuild, Ready/Standby, and Hot-Spare/Standby Hot-Spare drives are not
responding, a drive was found at the incorrect SCSI ID, and unidentified drives were found.
Action: Press F4, F5, F6, or F10.
09 00 Explanation: No error occurred.
Action: No action is required.
09 10 Explanation: Hot-Spare/Standby Hot-Spare drives are not responding.
Action: Press F4, F5, or F10.
09 20 Explanation: Ready/Standby drives are not responding.
Action: Press F4, F5, or F10.
09 30 Explanation: Hot-Spare/Standby Hot-Spare and Ready/Standby drives are not responding.
Action: Press F4, F5, or F10.
0F 00 Explanation: No error occurred.
Action: No action is required.
0F 10 Explanation: Hot-Spare/Standby Hot-Spare drives are not responding.
Action: Press F4, F5, or F10.
0F 20 Explanation: Ready/Standby drives are not responding.
Action: Press F4, F5, or F10.
0F 30 Explanation: Hot-Spare/Standby Hot-Spare and Ready/Standby drives are not responding.
Action: Press F4, F5, or F10.

Rebuilding a defunct drive

A hard disk drive goes defunct when there is a loss of communication between the controller and the hard
disk drive. This can be caused by any of the following:
An improperly connected cable, hard disk drive, or controller
A loss of power to a drive
A defective cable, backplane, hard disk drive or controller
In each case, the communication problem needs to be resolved, and then a Rebuild operation is required
to reconstruct the data for the device in its disk array. The ServeRAID controllers can reconstruct RAID
level-1 and RAID level-5 logical drives, but they cannot reconstruct data stored in RAID level-0 logical
drives.
To prevent data-integrity problems, the ServeRAID controllers set the RAID level-0 logical drives to
Blocked during a Rebuild operation. After the Rebuild operation completes, you can unblock the RAID
level-0 logical drives, and access them once again. Remember, however, that the logical drive might
contain damaged data.
Chapter 6. Solving ServeRAID problems
105