- View SMART status -
smartctl -a [device] - View RAID block information
mdadm --examine [device] - Create read-only
mdadm --assemble --readonly --run /dev/md0 [device] [device2] [...] - Create RAID fixing bad superblocks -
mdadm --assemble /dev/md0 [device] --update=devicesize --run - Stop a RAID
mdadm --stop /dev/md??? - Power off a disk
udisksctl power-off -b /dev/sdc
