Comment 4 for bug 2062993

Current stable of sunbeam will install Microceph from `latest/edge`, and the rev 43, the one you've got installed introduced new behavior that seem to fail in your environment.
You can see a lot of
unit-microceph-0: 15:10:06 INFO unit.microceph/0.juju-log _on_relation_changed event
unit-microceph-0: 15:10:07 INFO unit.microceph/0.juju-log Storage not available, deferring event.
unit-microceph-0: 15:10:07 INFO unit.microceph/0.juju-log _on_relation_changed event

Candidate will install from the channel `reef/candidate` which should be more stable