-l, --extents [+]LogicalExtentsNumber[%{VG|LV|FREE}] Extend or set the logical volume size in units of logical extents. With the + sign the value is added to the actual size of the logical volume and without it, the value is taken as an absolute one. The number can also be expressed as a percentage of the total space in the Volume Group with the suffix %VG or relative to the existing size of the Logical Volume with the suffix %LV or as a percentage of the remaining free space in the Volume Group with the suffix %FREE.
-L, --size [+]LogicalVolumeSize[kKmMgGtT] Extend or set the logical volume size in units in units of megabytes. A size suffix of M for megabytes, G for gigabytes or T for terabytes is optional. With the + sign the value is added to the actual size of the logical volume and without it, the value is taken as an abso- lute one.