md1 : 2 devices of 2 active ============================ /proc/mdstat =========================== Personalities : [raid0] [raid1] md1 : active raid1 sdb3[0] sda3[1] 82941952 blocks super 1.2 [2/2] [UU] md0 : active raid0 sdb2[0] sda2[1] 19515392 blocks super 1.2 512k chunks unused devices: