Personalities : [raid1] md2 : active raid1 sdb3[1] sda3[0] 1073741632 blocks super 1.0 [2/2] [UU] md3 : active raid1 sda5[0] sdb5[1] 1847605568 blocks super 1.0 [2/2] [UU] md0 : active raid1 sdb1[1] sda1[0] 8388544 blocks super 1.0 [2/2] [UU] md1 : active raid1 sdb2[1] sda2[0] 524224 blocks super 1.0 [2/2] [UU] unused devices: