Personalities : [linear] [raid0] [raid1] [raid10] [raid6] [raid5] [raid4] [multipath] md103 : active raid1 sda3[2] sdb3[3] 124936128 blocks super 1.2 [2/2] [UU] md104 : active raid1 sda4[2] sdb4[3] 724675904 blocks super 1.2 [2/2] [UU] md127 : active raid1 sdb2[1] sda2[0] 125001664 blocks [2/2] [UU] unused devices: