So, AFAICT, the bulk of the write would be writing out the pgmap to disk every second or so. Is it really needed to write it in full ? It doesn't change all that much AFAICT, so writing incremental changes with only periodic flush might be a better option ? Cheers, Sylvain _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com