Create and remove physical volumes, assign physical volumes to volume groups, create and delete logical volumes

Create and remove physical volumes
Suppose there is partition named /dev/sdb which is of type lvm
To create pv
#pvcreate /dev/sdb
To remove pv
#pvremove /dev/sdb

Assign physical volumes to volume groups
#vgcreate -s size vgname /dev/sdb

Create and delete logical volumes
#lvcreate -L size -n lvname vgname
Delete
#lvremove /dev/vgname/lvname