Appliance operational, one disk in RAID set fails

If one of your disks fails, you can replace it with another disk and resume operation.

Follow this procedure to replace a failed disk. You can use a good disk from another appliance or a new, replacement disk. The RAID system replicates the contents of the existing disk to the new disk.

  1. Shut down the appliance by using the following command:
    mqa# shutdown poweroff
    If you are taking a disk from another appliance, you must shut down the donor appliance too.
  2. Remove the failed disk from your first appliance. Follow the instructions in Replacing a solid-state disk drive module.
  3. If you are reusing a disk from another appliance, remove that disk.
  4. Insert the good disk in the appliance to replace your failed disk.
  5. Power up the appliance that you have replaced the disk in.
  6. When a new disk with an unknown status is detected, a RAID rebuild begins automatically. This procedure can take some hours, you can check for completion by entering the following commands:
    mqa# config
    mqa (config)# show raid-physical-drive
    The output includes a Rebuild field, showing the percentage complete. When complete, the State field contains the following text:
    online
  7. Enter the following commands to check the state of your queue managers:
    mqa(config)# exit
    mqa# mqcli
    mqa(mqcli)# dspmq

If this procedure does not go as expected, contact IBM Support.