2 - [mon.a, mgr.x, osd.0, osd.1, osd.2, osd.3, osd.4, osd.5, client.0]
4 - volumes: # attached to each instance
13 osd max object name len: 460
14 osd max object namespace len: 64
16 osd objectstore: filestore
23 - \(POOL_APP_NOT_ENABLED\)
24 - ceph_objectstore_tool: