In case you have free space in volume group it is easy to increase logical volume.
Check volume group free space:
vgs
Extend logical volume by 1G:
lvextend -L +1G /dev/sysvg/var
Resize part:
xfs_growfs /dev/sysvg/var
Done!
If you're inventing and pioneering, you have to be willing to be misunderstood for long periods of time
In case you have free space in volume group it is easy to increase logical volume.
Check volume group free space:
vgs
Extend logical volume by 1G:
lvextend -L +1G /dev/sysvg/var
Resize part:
xfs_growfs /dev/sysvg/var
Done!