Hi, We upgraded our ceph cluster from giant to hammer 0.94.2 and all went well except for KVM mounting rbd erasure coded pools: http://tracker.ceph.com/issues/12012 If you use erasure coded pools in production you might want to wait before upgrading to hammer. Thanks to Loic and Mehdi for their help in making this bug report. Sincerely, Laurent _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com