Replacing a failed disk drive in Data Domain

Here's a quick procedure to replace a failed disk drive in Data Domain. Once you've received your replacement disk from support (depends on your service agreement). Perform the following steps:-

  1. Logon to your Data Domain
  2. Run 'disk show state' to see failed disks, this will give you it's co-ordinates
  3. If you are unsure, run 'beacon' which will activate a visual to confirm the correct drive.
  4. Eject the failed drive
  5. Insert the new drive
  6. Pause ~5 minutes and check the state has changed.
  7. If not run 'disk unfail <enclosure>.<disk>' in order t get the disk online.

For example:-

login as: sysadmin
Data Domain OS
Using keyboard-interactive authentication.
Last login: Mon Mar 24 16:32:09 GMT 2014 from ddm1.lab on ssh
Last login: Mon Mar 24 16:34:35 2014 from smurf.lab

Welcome to Data Domain OS
** NOTICE: There are 2 outstanding alerts. Run "alerts show current"
**         to display outstanding alert(s).
sysadmin@dd1a# disk unfail 2.11

The 'disk unfail' command will add the disk to the active storage tier
and mark it as a spare. Any exising data on this disk will be lost.
        Are you sure? (yes|no|?) [no]: yes

ok, proceeding.