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.