|
Hi Everyone, Just wondering if anyone has had any experience in using consumer grade SSD’s for a Ceph cluster? I came across this article
http://techreport.com/review/26523/the-ssd-endurance-experiment-casualties-on-the-way-to-a-petabyte/3 They have been testing different SSD’s write endurance and they have been able to write up to 1PB+ to a Samsung 840 Pro 256GB which is only “rated” at 150TBW and of course other SSD’s have failed well before 1PBW, So defiantly worth a read. So I’ve been thinking about using consumer grade SSD’s for OSD’s and Enterprise SSD’s for journals. Reasoning is enterprise SSD’s are a lot faster at journaling then consumer grade drives plus this would effectively half the overall write requirements on the consumer grade disks.
This also could be a cost effective alternative to using enterprise SSD’s as OSD’s however it seems if your happy to use 2 x replication it’s a pretty good cost saving however 3x replication not so much. Cheers, Quenten Grasso |
_______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
