LVM Special Options

Create swap on a logical volume:
# lvcreate -C y -L 10G VolGroup00 -n lvolswap
Fill all the free space left on a volume group
# lvcreate -l +100%FREE VolGroup00 -n lvolmedia

Extend an existing logical volume to use the maximum space:
# lvextend -l +100%FREE VolGroup00/lvolhome

# lvextend -l +100%FREE /dev/vg0/backup -r