LVM cheatsheet - LVM pvdisplay

LVM cheatsheet
PV
- pvcreate
  Initialize physical volume(s) for use by LVM
- pvchange
  Activate or de-activate physical volume
- pvdisplay
  Display physical volume details
- pvmove
  Move data from one PV to another
- pvs
  Display information about physical volumes
VG
- vgcreate
  Create a volume group
- vgchange
  Change volume group attributes
- vgcfgbackup
  Backup volume group configuration(s)
- vgcfgrestore
  Restore volume group configuration
- vgdisplay
  Display volume group information
- vgextend
  Add physical volumes to a volume group
- vgexport
  Unregister volume group(s) from the system
- vgimport
  Register exported volume group with system
- vgreduce
  Remove physical volume(s) from a volume group
- vgremove
  Remove volume group(s)
- vgscan
  Search for all volume groups,Rebuild /etc/lvmtab file
- vgsplit
  Move physical volumes into a new or existing volume group
LV
- lvcreate
  Create a logical volume
- lvchange
  Change the attributes of logical volume(s)
- lvdisplay
  Display information about a logical volume
- lvextend
  Add space to a logical volume
- lvreduce
  Reduce the size of a logical volume
- lvremove
  Remove logical volume(s) from the system
- lvrename
  Rename a logical volume
- lvresize
  Resize a logical volume
- lvs
  Display information about logical volumes
- lvscan
  List all logical volumes in all volume groups

pvdisplayExample

pvdisplayis used to display physical volume details.It shows the attributes of PVs, like size, physical extent size, space used for the VG descriptor area, etc.

[root@lau_centos7 ~]# pvdisplay 
  --- Physical volume ---
  PV Name               /dev/sda2
  VG Name               centos_centos7
  PV Size               <19.00 GiB / not usable 3.00 MiB
  Allocatable           yes (but full)
  PE Size               4.00 MiB
  Total PE              4863
  Free PE               0
  Allocated PE          4863
  PV UUID               cqo2fj-rRuL-4wik-JoME-V5Ip-6lym-X6ITK0
   
  "/dev/sdb" is a new physical volume of "20.00 GiB"
  --- NEW Physical volume ---
  PV Name               /dev/sdb
  VG Name               
  PV Size               20.00 GiB
  Allocatable           NO
  PE Size               0   
  Total PE              0
  Free PE               0
  Allocated PE          0
  PV UUID               N3rmnG-eE18-FbvH-ExD3-vn0h-qXMf-GRyd9G

Date： From:www.lautturi.com, cheatsheet