Extend the size of a logical volume
The lvextend command allows you to extend the size of a logical volume online, without interrupting application access to the volume. This dynamic extension is transparent to applications using the logical volume.
lvextend [OPTION]... LOGICAL_VOLUME_PATH
-L, --size: Specify the new size of the logical volume. Units can be kKmMgGtT. Prefix with '+' to add to the current size.
-l, --extents: Specify the new size in logical extents (LE). Prefix with '+' to add to the current size.
Logical Volume: The path to the logical volume to be extended.
Add 100MB of space to the logical volume /dev/vg1000/lvol0:
[root@localhost ~]# lvextend -L +100M /dev/vg1000/lvol0
Output:
Extending logical volume lvol0 to 300.00 MB
Logical volume lvol0 successfully resized