Personalities : [raid1] [linear] [multipath] [raid0] [raid6] [raid5] [raid4] [raid10]
md0 : active raid1 sdb1[0] sdc1[1]
7813893440 blocks super 1.2 [2/2] [UU]
bitmap: 0/59 pages [0KB], 65536KB chunk
mdadm -Q /dev/sdb1
/dev/sdb1: is not an md array
/dev/sdb1: device 0 in 2 device active raid1 /dev/md0. Use mdadm --examine for more detail.
-Q, --query
Examine a device to see (1) if it is an md device and (2) if it
is a component of an md array. Information about what is dis‐
covered is presented.