Personalities : [raid1] md2 : active raid1 sdb4[1] sda4[0] 231733248 blocks super 1.2 [2/2] [UU] bitmap: 1/2 pages [4KB], 65536KB chunk md0 : active raid1 sda3[0] sdb3[1] 261120 blocks super 1.2 [2/2] [UU] bitmap: 0/1 pages [0KB], 65536KB chunk md1 : active raid1 sdb2[1] sda2[0] 2094080 blocks super 1.2 [2/2] [UU] unused devices: