Hi, to answer myself. With ceph osd crush show-tunables I see a little bit more, but doesn't know how far away from firefly-tunables I'm at the procuction cluster are. New testcluster with profile optimal: ceph osd crush show-tunables { "choose_local_tries": 0, "choose_local_fallback_tries": 0, "choose_total_tries": 50, "chooseleaf_descend_once": 1, "profile": "firefly", "optimal_tunables": 1, "legacy_tunables": 0, "require_feature_tunables": 1, "require_feature_tunables2": 1} the production cluster: ceph osd crush show-tunables { "choose_local_tries": 0, "choose_local_fallback_tries": 0, "choose_total_tries": 50, "chooseleaf_descend_once": 0, "profile": "unknown", "optimal_tunables": 0, "legacy_tunables": 0, "require_feature_tunables": 1, "require_feature_tunables2": 0} Look this like argonaut or bobtail? And how proceed to update? Does in makes sense first go to profile bobtail and then to firefly? Regards Udo Am 01.12.2014 17:39, schrieb Udo Lembke: > Hi all, > http://ceph.com/docs/master/rados/operations/crush-map/#crush-tunables > described how to set the tunables to legacy, argonaut, bobtail, firefly > or optimal. > > But how can I see, which profile is active in an ceph-cluster? > > With "ceph osd getcrushmap" I got not realy much info > (only "tunable choose_local_tries 0 > tunable choose_local_fallback_tries 0 > tunable choose_total_tries 50) > > > Udo > > _ _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com