Comment 2 for bug 1614914

> - deploy env with 3 controllers and 2 ceph+compute nodes
> - revert it

Could you please explain how one could possibly "revert" a ceph cluster?

> - run 'restart ceph-all' on each node in the env

restarting ceph services on all nodes simultaneously is not a good idea, instead one
should restart them node by node giving ceph enough time to establish quorum, perform
peering (and possibly recovery) before proceeding to the next node.

> - run OSTF tests

What is the time interval before restarting ceph and running the test?
(establishing quorum and peering/recovery takes some time depending on the number of
the nodes, # of placement groups, etc)