Is it possible to create a volume group from a logical volume instead of a physical volume? If so, are there any pitfalls in doing so?
Installing OpenStack Compute on a a system that already has all of the physical volumes assigned to a singe volume group. The nova-volume service requires a separate volume group, as described in the documentation. I want to know if I can carve off a logical volume and then create the "nova-volumes" volume group.