Personalities : [raid1] 
md0 : active raid1 sda[0] sdb[1]
      488782848 blocks super 1.2 [2/2] [UU]
      [==============>......]  check = 72.1% (352611840/488782848) finish=3120.7min speed=726K/sec
      bitmap: 0/4 pages [0KB], 65536KB chunk

unused devices: