11.5.1 Troubleshooting Disks Perform the following actions when there may be a problem with a disk.
• Ensure there is no damage to the system’s backplane.
• Ensure all cables are installed correctly.
• Ensure the disk is seated correctly in the backplane or bay and the latch is secured.
• Reinsert the disk.
• Replace the disk.
• After reconnecting, reseating, reinserting, or replacing a disk:
o Perform a rescan.
o Initialize the disk.
CAUTION: When a disk is initialized, all data on the disk is lost.
If problems with a disk have caused an array to go Critical, it may be necessary to also assign a
dedicated or global spare for the array.
If problems with a disk have caused an array to go Offline, data may have been lost. Recover lost
data from a backup storage source.