Are you cleaning up an old volume group and want to ensure that your delete the volume group and PVID to avoid any possible risk of it accidentally being reused? You need to use reducevg to delete a volume group, as exportvg just removed the volume group definition for the ODM.

Here are the steps to remove a volume group.

 

List the current disks and volume groups.

lspv

NAME PVID VG STATUS
hdisk0    0012345678901234    rootvg     active
hdisk1    none                None
hdisk2    none                None
hdisk3    0012345678905678    osimagevg  active

 

List an logical volumes in the volume group.

lsvg -l osimagevg

Should return no logical volumes. If there are any Logical Volumes, you must delete these first with rmlv and/or rmfs.

 

Reduce the volume group by its member disks.

reducevg osimagevg hdisk3

ldeletepv: Volume Group deleted since it contains no physical volumes.

 

Clear the PVID from the disk.

chdev -a pv=clear -l hdisk2

 

Confirm the volume group has gone.

lspv

NAME PVID VG STATUS
hdisk0    0012345678901234    rootvg     active
hdisk1    none                None
hdisk2    none                None
hdisk3    none                None

 

The readvgda command confirms volume group has been deleted.

readvgda -t /dev/hdisk3

Invalid lvm_rec!