In the event where you believe you overallocated the size for a particular logical volume, you may want to reduce it. In this section, the guide shows you how to reduce LVM logical volume.
Before starting to reduce a logical volume, it is always good to check the LVM volume status for available free space and label for correct LVM volume.
Now that you had confirms the information, you may extend it using lvextend
command. The command pattern is as follows:
$ lvreduce -L -<size> -r /dev/<path/to/logical/volume>
Example:
$ lvextend -L -10G -r /dev/lvmVG01/localstore_root
That's all about reducing logical volume.