Hi Martin B Nielsen, Thank you for your quick answer :) I am running with replication set to 1. Because my server used RAID 6, divided into 4 partitons, earch partiton is 1 OSD, format ext4. I have 2 server ==> 8 OSD. Do you have any advice? ^^ _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com