Find out which OSD it is: ceph health detail Squeeze blocks off the affected OSD: ceph osd reweight OSDNUM 0.8 Repeat with any OSD which becomes toofull. Your cluster is only about 50% used, so I think this will be enough. Then when it finishes, allow data back on OSD: ceph osd reweight OSDNUM 1 Hopefully ceph will someday be taught to move PGs in a better order! Chad. _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com