Hi, I have a couple questions about http://tracker.ceph.com/issues/15653 In the ticket Sage discusses small/big drives, and the small drives get more data than expected. But we observe this at the rack level: our cluster has four racks, with 7, 8, 8, 4 hosts respectively. The rack with 4 hosts is ~35% more full than the others. So AFAICT, because of #15653, CRUSH does not currently work well if you try to build a pool which is replicated rack/host-wise when your rack/hosts are not all ~identical in size. Are others noticing this pattern? Or are we unusual in that our clusters are not flat/uniform in structure? Cheers, Dan _______________________________________________ Ceph-large mailing list Ceph-large@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-large-ceph.com
