2 - volumes: # attached to each instance
6 - [mon.a, mds.a, mgr.x, osd.0, osd.1, client.0]
10 - MDS in read-only mode
11 - force file system read-only
22 - sudo ceph config set mgr mgr/devicehealth/enable_monitoring false --force
27 - ceph_test_admin_socket_output --all