On 05/18/2018 11:19 PM, Patrick Donnelly wrote: > So, you would want to have a standby-replay > daemon for each rank or just have normal standbys. It will likely > depend on the size of your MDS (cache size) and available hardware. jftr, having 3 active mds and 3 standby-replay resulted May 20217 in a longer downtime for us due to http://tracker.ceph.com/issues/21749 (http://lists.ceph.com/pipermail/ceph-users-ceph.com/2017-October/thread.html#21390 - thanks again for the help back then, still much appreciated) we're not using standby-replay MDS's anymore but only "normal" standby, and didn't have had any problems anymore (running kraken then, upgraded to luminous last fall). Regards, Daniel _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com