Comment 2 for bug 1844099

Are you saying that if Juju picks a zone for a given instance, it should try to request the volume storage from that zone. It sounds like Ceph can have a completely different idea of zones from Nova. Is that functionally useful?
Is it that you would like to do something like root-disk-source=volume,zone=X or some other technique?
Wouldn't it be Openstack that would do the recommended scheduling of where the instance is running vs where it gets the volume source from?