NAME                DISC-ALN DISC-GRAN DISC-MAX DISC-ZERO
sr0                        0        0B       0B         0
vda                        0      512B       2G         0
├─vda1                     0      512B       2G         0
└─vda2                     0      512B       2G         0
  ├─vg_main-lv_root        0      512B       2G         0
  └─vg_main-lv_swap        0      512B       2G         0
