To remove an inactive logical volume, use the
lvremove command. If the logical volume is currently mounted, unmount the volume before removing it. In addition, in a clustered environment you must deactivate a logical volume before it can be removed.
The following command removes the logical volume
/dev/testvg/testlv from the volume group
testvg. Note that in this case the logical volume has not been deactivated.
Do you really want to remove active logical volume "testlv"? [y/n]:
Logical volume "testlv" successfully removed
You could explicitly deactivate the logical volume before removing it with the
lvchange -an command, in which case you would not see the prompt verifying whether you want to remove an active logical volume.