Something
public text v1 · immutable$ sudo mdadm -C /dev/md1 --level=5 --chunk=256 --raid-devices=3 /dev/sde /dev/sdg missing
mdadm: /dev/sde is too small: 0K
mdadm: create aborted
$ sudo mdadm -C /dev/md1 --level=5 --chunk=256 --raid-devices=3 /dev/sde /dev/sdg missing
mdadm: /dev/sde is too small: 0K
mdadm: create aborted