vgextend /dev/vg0/dev/sda3
==== Ampliar LV ====
Ampliar hasta:
lvextend -L12G /dev/vg/foo
Ampliar x adicional:
lvextend -L+1G /dev/vg/foo
===== Reducir =====
fsck -f /dev/vg0/foo
resize2fs /dev/vg0/foo 80G
lvreduce -L 80G /dev/vg0/foo