4.2.2.1.3.1. Volume Group Example
> vgdisplay

  --- Volume group ---
  VG Name               volumes
  System ID
  Format                lvm2
  Metadata Areas        2
  Metadata Sequence No  10
  VG Access             read/write
  VG Status             resizable
  MAX LV                0
  Cur LV                3
  Open LV               3
  Max PV                0
  Cur PV                2
  Act PV                2
  VG Size               1.27 TiB
  PE Size               32.00 MiB
  Total PE              41695
  Alloc PE / Size       24692 / 771.62 GiB
  Free  PE / Size       17003 / 531.34 GiB
  VG UUID               fbvtrb-GFbS-Nvf4-Ogg3-J4fX-dj83-ebh39q