This assumes you are familiar with LVM (Logical Volume Manager). If not, check out my article Getting Started with LVM (Logical Volume Manager).

Let's take an example where there are three physical volumes in the volume group named MyVG.

The pvdisplay command is used to display the physical volumes in a volume group.

[root@server1 ~]# pvdisplay
--- Physical volume ---
  PV Name               /dev/sda1
  VG Name               MyVG
  PV Size               500 GB / not usable 79.0 MB
  Allocatable           yes
  PE Size (KByte)       4096
  Total PE              4388
  Free PE               4375
  Allocated PE          13
  PV UUID               7016c299-b6b1-40ad-80f0-e4dd0b3def65

--- Physical volume ---
  PV Name               /dev/sdb1
  VG Name               MyVG
  PV Size               500 GB / not usable 79.0 MB
  Allocatable           yes
  PE Size (KByte)       4096
  Total PE              4388
  Free PE               4375
  Allocated PE          13
  PV UUID               7016c299-b6b1-40ad-80f0-e4dd0b3def66

--- Physical volume ---
  PV Name               /dev/sdc1
  VG Name               MyVG
  PV Size               500 GB / not usable 79.0 MB
  Allocatable           yes
  PE Size (KByte)       4096
  Total PE              4388
  Free PE               4375
  Allocated PE          13
  PV UUID               7016c299-b6b1-40ad-80f0-e4dd0b3def67