Personalities : [raid1] md0 : active raid1 sdd[1] sda[0] 3906853888 blocks super 1.2 [2/2] [UU] [>....................] resync = 0.5% (21453824/3906853888) finish=4504.7min speed=14374K/sec bitmap: 30/30 pages [120KB], 65536KB chunk unused devices: