Specifications

Recovering from Hard Drive Failure
83MSA1000 Reference Guide
Procedure to Attempt Recovery
Inserting replacement drives when fault tolerance has been compromised will not
improve the condition of the logical volume. Instead, if unrecoverable error
messages display on your screen, try the following procedure to recover data.
1. Check for loose, dirty, broken, or bent cabling and connectors on all devices.
2. Turn the entire system off. Remove and then reinsert all hard drives and
controllers.
Caution: Data can be lost if the drives are not firmly reseated.
3. Turn the system on. In some cases, a marginal drive might work again for
long enough to allow you to make copies of important files.
4. If a #02 or #04 is displayed on the front panel, press the right push button to
re-enable the logical volumes. Remember that data loss has probably occurred
and any data on the logical volume is suspect.
5. Make copies of important data, if possible.
6. Replace any failed drives.
7. After the failed drives have been replaced, the fault tolerance may again be
compromised. If so, cycle the power again, and if the #02 or #04 front-panel
display message is displayed, press the right push button. This will re-enable
the logical drive(s).
To minimize the risk of data loss from compromised fault tolerance, make
frequent backups of all logical volumes.