Hello Michael, I maintain a small Ceph cluster at the University of Bath, our cluster consists of: Monitors: 3 x Dell PowerEdge R630 - 2x Intel(R) Xeon(R) CPU E5-2609 v3 - 64GB RAM - 4x 300GB SAS (RAID 10) OSD Nodes: 6 x Dell PowerEdge R730XD & MD1400 Shelves - 2x Intel(R) Xeon(R) CPU E5-2650 - 128GB RAM - 2x 600GB SAS (OS - RAID1) - 2x 200GB SSD (PERC H730) - 14x 6TB NL-SAS (PERC H730) - 12x 4TB NL-SAS (PERC H830 - MD1400) Please let me know if you want any more info. In my experience thus far, I've found this ratio is not useful for cache tiering etc - the SSDs are in a separate pool. If I could start over, I'd go for fewer OSDs / host - and no SSDs (or a much better ratio - like 4:1). Kind Regards, Alex. _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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