Hi Don, I had a similar problem starting a mon. In my case a computer failed and I removed and recreated the 3rd mon on a new computer. It would start but never get added to the other mon's lists. Restarting the other two mons caused them to add the third to their monmap . Good luck! Chad. _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com