Scenario 2: Recovering from a corrupt backup device

The following steps describe the recommended approach for recovering a system from a corrupted backup device. Examining the system logs to determine disk failure:

/var/log/messages

or

/var/log/syslog

In the event of a single disk failure:

1        Determine the failed disk drive by executing the appropriate disk controller command or by launching the disk controller tools (this can also be performed in BIOS):

tw_cli info <controller> [3ware-based systems]

or

cat /proc/mdstat [for desktops and 1U systems]

2        Insert the new disk drive. Ideally, the new drive should be the same size, type and model as the original drive.

Once the new drive is inserted, the rebuild process should begin automatically. If it does not, use the 3ware utility (for rack-mount units), or the rebuild_disk script (desktops and 1U systems) to add the drive and launch the rebuild process.

When the new device has been rebuilt successfully, it is ready for use.