lvreduce

Reduce the size of a logical volume. See also: lvm. More information: https://manned.org/lvreduce.

• Reduce a volume's size to 120 GB:

lvreduce --size {{120G}} {{logical_volume}}

• Reduce a volume's size by 40 GB as well as the underlying filesystem:

lvreduce --size -{{40G}} -r {{logical_volume}}