updating ceph-osd config

[Daniel Bidwell]

I started out installing openstack-base and then went back to add more
disks to be used for block storage.  The default was /dev/sdb.  I added
/dev/sda, /dev/sdc, and /dev/sdd via the juju gui, saved and deployed.
 Nothing happened.

I just went in and partitioned /dev/sda, /dev/sdc, and /dev/sdd on all
machines.  Using 2.0.2-xenial-amd64 how do I tell ceph-osd to go reread
the configuration and setup the additional disks?

There is a resolved/retry in the gui, but these don't have errors and
thus there is nothing to resolve/retry.
-- 
Daniel Bidwell <drbidwell at gmail.com>