Hello! Thanks for reply! Sure, here is the output # ceph versions { "mon": { "ceph version 17.2.6 (d7ff0d10654d2280e08f1ab989c7cdf3064446a5) quincy (stable)": 3 }, "mgr": { "ceph version 17.2.6 (d7ff0d10654d2280e08f1ab989c7cdf3064446a5) quincy (stable)": 1 }, "osd": { "ceph version 15.2.14 (cd3bb7e87a2f62c1b862ff3fd8b1eec13391a5be) octopus (stable)": 13 }, "mds": {}, "rgw": { "ceph version 17.2.6 (d7ff0d10654d2280e08f1ab989c7cdf3064446a5) quincy (stable)": 1 }, "overall": { "ceph version 15.2.14 (cd3bb7e87a2f62c1b862ff3fd8b1eec13391a5be) octopus (stable)": 13, "ceph version 17.2.6 (d7ff0d10654d2280e08f1ab989c7cdf3064446a5) quincy (stable)": 5 } } Most likely the problem is in " require-osd-release = nautilus ". We will try to rebuild mon service _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx