root@srv-debian:/# mdadm --examine /dev/md0
mdadm: No md superblock detected on /dev/md0.
root@srv-debian:/# cat /proc/mdstat
Personalities : [raid6] [raid5] [raid4]
md0 : inactive sdc1[0](S) sdb1[4](S) sde1[2](S)
      5860532931 blocks super 1.2

unused devices: <none>
root@srv-debian:/# mdadm --examine /dev/md0
mdadm: No md superblock detected on /dev/md0.
root@srv-debian:/# mdadm --detail /dev/md0
mdadm: md device /dev/md0 does not appear to be active.
root@srv-debian:/#