ns213117:~# cat /proc/mdstat
Personalities : [linear] [raid0] [raid1] [raid10] [raid6] [raid5] [raid4] [multipath] [faulty]
md1 : active raid1 sdb1[1] sda1[0]
      10239872 blocks [2/2] [UU]

md2 : active raid1 sdb2[1] sda2[0]
      1454369728 blocks [2/2] [UU]

unused devices: <none>
ns213117:~# cat /proc/partitions
major minor  #blocks  name

   8        0 1465138584 sda
   8        1   10239969 sda1
   8        2 1454369792 sda2
   8        3     523264 sda3
   8       16 1465138584 sdb
   8       17   10239969 sdb1
   8       18 1454369792 sdb2
   8       19     523264 sdb3
   9        2 1454369728 md2
   9        1   10239872 md1
ns213117:~#