> Give me a moment to check this out and thank you for opening my eyes. > Let me to notify you about the results of implementing your recommendations. I am looking forward to hearing from you. One more thing. Run rados bench right now to see from what performance level are you starting. I suggest 2 tests for default block size and lets say 4KB. Here is very useful paper which helped me a lot: http://ceph.com/community/ceph-performance-part-1-disk-controller-write-throughput/ -- Regards Maciej Galkiewicz -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html