Linux Administration Cookbook

Volume groups

You can have more than one physical volume grouped together in a volume group; later, this allows for flexibility in terms of the logical volumes that sit on top.

You will get a printout when using pvs and pvdisplay that tells you the volume group that the disk is a part of, but if you want to only list the volume group information, vgs and vgdisplay can be used:

$ sudo vgs  VG         #PV #LV #SN Attr   VSize   VFree  VolGroup00   1   2   0 wz--n- <38.97g    0$ sudo vgdisplay  --- Volume group ---  VG Name               VolGroup00  System ID               Format                lvm2  Metadata Areas        1  Metadata Sequence No  3  VG Access             read/write  VG Status             resizable  MAX LV                0  Cur LV                2  Open LV               2  Max PV                0  Cur PV                1  Act PV                1  VG Size               <38.97 GiB  PE Size               32.00 MiB  Total PE              1247 Alloc PE / Size 1247 / <38.97 ...