Changing Drives - aesser11/home-lab GitHub Wiki

Replacing a failed Data Drive

• https://docs.unraid.net/legacy/FAQ/replacing-a-data-drive/

1. Stop the array
2. Unassign the old drive if still assigned (to unassign, set it to No Device)
3. Power down
4. [ Optional ] Pull the old drive (you may want to leave it installed for Preclearing or testing)
5. Install the new drive
6. Power on
7. Assign the new drive in the slot of the old drive
8. Go to the Main → Array Operation section
9. Put a check in the Yes, I'm sure checkbox (next to the information indicating the drive will be rebuilt), and click the Start button
10. The rebuild will begin, with hefty disk activity on all drives, lots of writes on the new drive and lots of reads on all other drives

Re-enabling a disabled disk

1. Stop the array
2. Unassign the disk from the slot
3. Start the array in maintenance mode
4. Stop the array again
5. Reassign the drive to the same slot.

This will trigger a Data-Rebuild

The idea is to start the array temporarily with the drive "missing" so it changes from "disabled" to "emulated" status, then to stop it and "replace" the drive to get it back to "active" status.

Removing a drive from the array aka shrink array

• #the-remove-drives-then-rebuild-parity-method
• #the-clear-drive-then-remove-drive-method

Replacing a parity drive

• https://wiki.unraid.net/The_parity_swap_procedure

Replacing Multiple Data Drives with a Single Larger Drive

• https://wiki.unraid.net/index.php/Replacing_Multiple_Data_Drives_with_a_Single_Larger_Drive

Replace A Cache Drive

• https://wiki.unraid.net/Replace_A_Cache_Drive