> On 4 Oct 2021, at 16:38, Stefan Kooman <stefan@xxxxxx> wrote: > > What procedure are you following to add the mon? # ceph mon dump epoch 10 fsid 677f4be1-cd98-496d-8b50-1f99df0df670 last_changed 2021-09-11 10:04:23.890922 created 2018-05-18 20:43:43.260897 min_mon_release 14 (nautilus) 0: [v2:10.40.0.81:3300/0,v1:10.40.0.81:6789/0] mon.ceph-01 1: [v2:10.40.0.83:3300/0,v1:10.40.0.83:6789/0] mon.ceph-03 2: [v2:10.40.0.86:3300/0,v1:10.40.0.86:6789/0] mon.ceph-06 dumped monmap epoch 10 sudo -u ceph ceph mon getmap -o /tmp/monmap.map got monmap epoch 10 sudo -u ceph ceph-mon -i mon2 --mkfs --monmap /tmp/monmap.map chown -R ceph:ceph /var/lib/ceph/mon/ceph-mon2 systemctl start ceph-mon@mon2 > > Is this physical hardware? Or a (cloned) VM? This is hardware > > Have you checked that you can connect with the other monitors on port 6789 / 3300 (and vice versa)? Yes, of course: root@mon2:/var/lib/ceph # telnet 10.40.0.81 3300 Trying 10.40.0.81... Connected to 10.40.0.81. Escape character is '^]'. ceph v2 Terminated root@mon2:/var/lib/ceph # telnet 10.40.0.83 3300 Trying 10.40.0.83... Connected to 10.40.0.83. Escape character is '^]'. ceph v2 Terminated root@mon2:/var/lib/ceph # telnet 10.40.0.86 3300 Trying 10.40.0.86... Connected to 10.40.0.86. Escape character is '^]'. ceph v2 Terminated k _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx