major minor  #blocks  name

   8     0  488386584 sda
   8     1   10241406 sda1
   8     2  477620482 sda2
   8     3     522112 sda3
   8    16  488386584 sdb
   8    17   10241406 sdb1
   8    18  477620482 sdb2
   8    19     522112 sdb3
   9     2  477620416 md2
   9     1   10241280 md1