On 02/12/2013 01:54 PM, SZÉKELYI Szabolcs wrote: > I'm not a Ceph expert, but I don't think so. Quorum is an essential feature of > clusters to prevent split-brain situations. Even if it was possible, you > really should not do that otherwise you may end up losing data in case a real > split-brain occurs. So I have a ceph cluster of 4 nodes on separate sites (two nodes each site, 1 mon on site A, 2 mons on site B). crush-maps make sure that data stays site-local. If the sites are split (brained) through the WAN line, that means my monitors are divided by half, and site A would stop working? This should _not_ happen. A Split-Brain in this case wouldn't hurt, because as I said, all the data is staying site-local. _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com