The required ceph changes have been merged to support this. I'm okay with merging this into the current charm now. Edward, can you please also file a merge against hte lp:~openstack-charmers/charms/precise/cinder/python-redux branch that implements the same hook and config changes? I've updated those branches with the latest charm-helpers, so the ceph helpers should support specifying the replica count, and it already calculates the PG number accordingly.
The required ceph changes have been merged to support this. I'm okay with merging this into the current charm now. Edward, can you please also file a merge against hte lp:~openstack-charmers/charms/precise/cinder/python-redux branch that implements the same hook and config changes? I've updated those branches with the latest charm-helpers, so the ceph helpers should support specifying the replica count, and it already calculates the PG number accordingly.