major minor  #blocks  name

   8        0 1953514584 sda
   8        1   20980858 sda1
   8        2    8393962 sda2
   8        3 1924137180 sda3
   8       16 1953514584 sdb
   8       17   20980858 sdb1
   8       18    8393962 sdb2
   8       19 1924137180 sdb3
   9        0   20980736 md0
   9        1   16787456 md1
   9        2 1924137088 md2
  11        0    1048575 sr0
  11        1    1048575 sr1