major minor  #blocks  name

   8        0  570310656 sda
   8        1     512000 sda1
   8        2  569797632 sda2
 253        0   52428800 dm-0
 253        1    4194304 dm-1
   8       16    7562496 sdb
   8       17       4064 sdb1
   8       21     255984 sdb5
   8       22     255984 sdb6
   8       23     112624 sdb7
   8       24     292848 sdb8
 253        2  513171456 dm-2
