User's Manual

Troubleshooting 267
•I/O
If you receive an alerts 2146 through 2150 as the result of doing a rebuild or
while the virtual disk is in a degraded state, then data cannot be recovered
from the damaged disk without restoring from 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
Do the following if you receive alerts 2146 through 2150 during a rebuild or
while the virtual disk is in a degraded state:
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 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, you should replace the damaged disk immediately to avoid
data loss.
Do the following:
1
Back up the degraded virtual disk to a fresh (unused) tape.
2 Replace the damaged disk.
3 Do a rebuild.
Read and Write Operations Experience Problems
If the system is hanging, timing out, or experiencing other problems with read
and write operations, then there may be a problem with the controller cables
or a device. For more information, see
Cables Attached Correctly and Isolate
Hardware Problems
.