ZFS Operations: Replacing a failed disk - HedgeDoc – Had to replace a failed disk in my NAS today as it was on its way out. For anyone else running a ZFS pool, here’s the steps involved:

1. zpool offline <pool> <device>
   
2. Remove failed disk and replace with new disk.
   
3. zpool replace <pool> <device>
   
4. Wait.
   

#ZFS