Well, ceph journals are of course going away with the imminent bluestore. Are small SSDs still useful for something with Bluestore?
For speccing out a cluster today that is a many 6+ months away from being required, which I am going to be doing, i was thinking all-SSD would be the way to go. (or is all-spinner performant with Bluestore?) Too early to make that call? -Ben On Wed, May 17, 2017 at 5:30 PM, Christian Balzer <ch...@gol.com> wrote: > > Hello, > > On Wed, 17 May 2017 11:28:17 +0200 Eneko Lacunza wrote: > > > Hi Nick, > > > > El 17/05/17 a las 11:12, Nick Fisk escribió: > > > There seems to be a shift in enterprise SSD products to larger less > write intensive products and generally costing more than what > > > the existing P/S 3600/3700 ranges were. For example the new Intel NVME > P4600 range seems to start at 2TB. Although I mention Intel > > > products, this seems to be the general outlook across all > manufacturers. This presents some problems for acquiring SSD's for Ceph > > > journal/WAL use if your cluster is largely write only and wouldn't > benefit from using the extra capacity brought by these SSD's to > > > use as cache. > > > > > > Is anybody in the same situation and is struggling to find good P3700 > 400G replacements? > > > > > We usually build tiny ceph clusters, with 1 gbit network and S3610/S3710 > > 200GB SSDs for journals. We have been experiencing supply problems for > > those disks lately, although it seems that 400GB disks are available, at > > least for now. > > > This. Very much THIS. > > We're trying to get 200 or 400 or even 800GB DC S3710 or S3610s here > recently with zero success. > And I'm believing our vendor for a change that it's not their fault. > > What seems to be happening (no official confirmation, but it makes all the > sense in the world to me) is this: > > Intel is trying to switch to 3DNAND (like they did with the 3520s), but > while not having officially EOL'ed the 3(6/7)10s also allowed the supply > to run dry. > > Which of course is not a smart move, because now people are massively > forced to look for alternatives and if they work unlikely to come back. > > I'm looking at oversized Samsungs (base model equivalent to 3610s) and am > following this thread for other alternatives. > > Christian > -- > Christian Balzer Network/Systems Engineer > ch...@gol.com Global OnLine Japan/Rakuten Communications > http://www.gol.com/ > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >
_______________________________________________ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
