Hello, On Tue, 5 Jul 2016 09:23:27 +0200 Götz Reinicke - IT Koordinator wrote: > Hi, > > we have offers for ceph storage nodes with different SSD types and some > are already mentioned as a very good choice but some are total new to me. > > May be you could give some feedback on the SSDs in question or provide > just small information which you primarily us? > > Regarding the three disk in questions it is not a question of the price > (good conditions :) ). More the question of reliability and real world > experiences. > > We plan to use 48*800 SSDs, so this is not just for fun. > > > Well known SSD: Intel DC S3710 > > Unfamiliar: Samsung SM863 > You might want to read the thread here: http://lists.ceph.com/pipermail/ceph-users-ceph.com/2016-February/007871.html And google "ceph SM863". However I'm still waiting for somebody to confirm that these perform (as one would expect from DC level SSDs) at full speed with sync writes, which is the only important factor for journals. If you're planning to put journals on NVMes, they should definitely be good enough. > Unfamiliar: Seagate ST800FM0043 (amazing fact sheet, very good > conditions!) > Seagate is on my shit-list (for HDDs, not SSDs, mind ya). And I can't find any trace of somebody having tested them for Ceph suitability, so you might want to get a sample. Christian -- Christian Balzer Network/Systems Engineer chibi@xxxxxxx Global OnLine Japan/Rakuten Communications http://www.gol.com/ _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
 |