RAID 5 protects the data with parity information distributed
on all member disks. The data can be recovered from the remaining
disks if one disk fails.
About this task
When a single disk in a RAID 5 disk array fails, the disk
array status changes to Degraded. The disk array remains functional
because the data on the failed disk can be rebuilt using parity and
data on the remaining disks. If a hot-spare disk is
available, the controller can rebuild the data on the disk automatically.
If a hot-spare disk is not available, you must replace the failed
disk and then initiate a rebuild. Complete the
following steps to initiate a rebuild:
Procedure
- Run the iprconfig utility by typing iprconfig.
- Select Work with disk unit recovery.
- Select Rebuild disk unit data.
- Select the disks you want to rebuild, then press Enter.
- To rebuild data, press Enter. If you do not want to rebuild
data, type q to cancel.
Attention: Data currently on the disk will be overwritten.