# cat /proc/mdstat 
Personalities : [raid1] 
md1 : active raid1 sda2[0] sdb2[1]
      972574976 blocks [2/2] [UU]

md0 : active raid1 sda1[2] sdb1[1]
      208704 blocks [2/1] [_U]
      [>....................]  recovery =  0.4% (1024/208704) finish=276.9min speed=12K/sec

unused devices: <none>
