lvresize

Change the size of a logical volume. See also: lvm. More information: https://man7.org/linux/man-pages/man8/lvresize.8.html.

lvresize --size 120G volume_group/logical_volume

lvresize --size +120G --resizefs volume_group/logical_volume

lvresize --size 100%FREE volume_group/logical_volume

lvresize --size -120G --resizefs volume_group/logical_volume