Users Guide

Physical Disk Is Oine Or Displays An Error Status
A physical disk may display an error status if it has been damaged, is oine, or was a member of a virtual disk that has been deleted
or initialized. The following actions may resolve the error condition:
• If a user has changed the status to Oine, then return the disk to Online status by performing the Online disk task.
• Investigate whether there are any cables, enclosure, or controller problems preventing the disk from communicating with the
controller. If you nd a problem and resolve it and disk does not return to Online or Ready status, reboot the system.
• If the disk is damaged, replace it.
Related links
Replacing A Failed Disk
Receive A Bad Block Alert With Replacement, Sense, Or Medium Error
The following alerts or events are generated when a portion of a physical disk is damaged:
• 2146
• 2147
• 2148
• 2149
• 2150
This damage is discovered when the controller performs an operation that requires scanning the disk. Examples of operations that
may result in these alerts are as follows:
• Consistency check
• Rebuild
• Virtual disk format
• I/O
If you receive alerts 2146 through 2150 as the result of performing a rebuild or while the virtual disk is in a degraded state, then data
cannot be recovered from the damaged disk without restoring from the backup. If you receive alerts 2146 through 2150 under
circumstances other than a rebuild, then data recovery may be possible. The following describes each of these situations.
Alerts 2146 Through 2150 Received During A Rebuild Or While A Virtual Disk Is Degraded
Perform the following steps:
1. Replace the damaged physical disk.
2. Create a new virtual disk and allow the virtual disk to completely resynchronize.
While the resynchronization is in progress, the status of the virtual disk is Resynching.
3. Restore data to the virtual disk from the backup.
Alerts 2146 Through 2150 Received While Performing I/O, Consistency Check, Format, Or
Other Operation
If you receive alerts 2146 through 2150 while performing an operation other than a rebuild, replace the damaged disk immediately to
avoid data loss.
Perform the following steps:
1. Back up the degraded virtual disk to a fresh (unused) tape drive.
2. Replace the damaged disk.
3. Perform a rebuild.
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