NAME                DISC-ALN DISC-GRAN DISC-MAX DISC-ZERO
loop3                      0        4K       4G         0
└─ceph_vg0-ceph_lv0        0        4K       4G         0
sr0                        0        2K       0B         0
vda                        0      512B       2G         0
└─vda1                     0      512B       2G         0
