Hi Why is "ceph -s" showing only two monitors while three monitor services are running ? # ceph versions { "mon": { "ceph version 16.2.5 (0883bdea7337b95e4b611c768c0279868462204a) pacific (stable)": 2 }, "mgr": { "ceph version 16.2.5 (0883bdea7337b95e4b611c768c0279868462204a) pacific (stable)": 2 }, "osd": { "ceph version 16.2.5 (0883bdea7337b95e4b611c768c0279868462204a) pacific (stable)": 36 }, "mds": { "ceph version 16.2.5 (0883bdea7337b95e4b611c768c0279868462204a) pacific (stable)": 1 }, "rgw": { "ceph version 16.2.5 (0883bdea7337b95e4b611c768c0279868462204a) pacific (stable)": 3 }, "overall": { "ceph version 16.2.5 (0883bdea7337b95e4b611c768c0279868462204a) pacific (stable)": 44 } } # ceph orch ls NAME PORTS RUNNING REFRESHED AGE PLACEMENT crash 3/3 8m ago 2y label:ceph ingress.nfs.nfs 10.45.128.8:2049,9049 4/4 8m ago 2y count:2 mds.cephfs 3/3 8m ago 2y count:3;label:mdss mgr 3/3 8m ago 23M a001s016;a001s017;a001s018;count:3 mon 3/3 8m ago 16h a001s016;a001s017;a001s018;count:3 <== [ 3 monitor services running] nfs.nfs ?:12049 3/3 8m ago 2y a001s016;a001s017;a001s018;count:3 node-exporter ?:9100 3/3 8m ago 2y * osd.unmanaged 36/36 8m ago - <unmanaged> prometheus ?:9095 1/1 10s ago 23M count:1 rgw.ceph ?:8080 3/3 8m ago 19h count-per-host:1;label:rgws root@a001s017:~# ceph -s cluster: id: 604d56db-2fab-45db-a9ea-c418f9a8cca8 health: HEALTH_OK services: mon: 2 daemons, quorum a001s018,a001s017 (age 16h) <== [ shows ONLY 2 monitors running] mgr: a001s017.bpygfm(active, since 13M), standbys: a001s016.ctmoay mds: 1/1 daemons up, 2 standby osd: 36 osds: 36 up (since 54s), 36 in (since 2y) rgw: 3 daemons active (3 hosts, 1 zones) data: volumes: 1/1 healthy pools: 43 pools, 1633 pgs objects: 51.81M objects, 77 TiB usage: 120 TiB used, 131 TiB / 252 TiB avail pgs: 1631 active+clean 2 active+clean+scrubbing+deep io: client: 220 MiB/s rd, 448 MiB/s wr, 251 op/s rd, 497 op/s wr # ceph orch ls --service_name=mon NAME PORTS RUNNING REFRESHED AGE PLACEMENT mon 3/3 8m ago 16h a001s016;a001s017;a001s018;count:3 <== [ 3 monitors running ] # ceph orch ps --daemon_type=mon NAME HOST PORTS STATUS REFRESHED AGE MEM USE MEM LIM VERSION IMAGE ID CONTAINER ID mon.a001s016 a001s016 running (19h) 9m ago 19h 706M 2048M 16.2.5 6e73176320aa 8484a912f96a mon.a001s017 a001s017 running (16h) 66s ago 19h 949M 2048M 16.2.5 6e73176320aa e5e5cb6c256c <== [ 3 mon daemons running ] mon.a001s018 a001s018 running (5w) 2m ago 2y 1155M 2048M 16.2.5 6e73176320aa 7d2bb6d41f54 a001s016# systemctl --type=service | grep @mon ceph-604d56db-2fab-45db-a9ea-c418f9a8cca8@mon.a001s016.service<mailto:ceph-604d56db-2fab-45db-a9ea-c418f9a8cca8@mon.a001s016.service> loaded active running Ceph mon.a001s016 for 604d56db-2fab-45db-a9ea-c418f9a8cca8 a001s017# systemctl --type=service | grep @mon ceph-604d56db-2fab-45db-a9ea-c418f9a8cca8@mon.a001s017.service<mailto:ceph-604d56db-2fab-45db-a9ea-c418f9a8cca8@mon.a001s017.service> loaded active running Ceph mon.a001s017 for 604d56db-2fab-45db-a9ea-c418f9a8cca8 a001s018# systemctl --type=service | grep @mon ceph-604d56db-2fab-45db-a9ea-c418f9a8cca8@mon.a001s018.service<mailto:ceph-604d56db-2fab-45db-a9ea-c418f9a8cca8@mon.a001s018.service> loaded active running Ceph mon.a001s018 for 604d56db-2fab-45db-a9ea-c418f9a8cca8 Thank you, Anantha