>>I actually have been searching for this information a couple of times in the >>ML now. >> >>Was hoping that you would’ve been done with it before I ordered :) Yes, me too ;) I'm waiting for my mellanox switches .
>>I will most likely order this week so I will see it when the stuff is being >>assembled :o >>Do you feel that there something in the setup that could be better if you >>would decide on hardware as of today? Maybe with 10 disks, if you need throughput (but I don't think it's your case), try to have 2 sas controllers with direct backplane. Inktank have good hardware guide http://www.inktank.com/resources/inktank-hardware-selection-guide/ http://www.inktank.com/resources/inktank-hardware-configuration-guide/ (I'm using dell poweredge server, can't comment on supermicro hardware) >>Also, will you try out replication set of 2 as well? Yes, I'll do bench with replication 1,2,3 (I'll use replication x3 for my production) Also planned to test qemu with virtio-blk,virtio-scsi,vhost-scsi, iothreads,multiqueues , librbd vs krbd ----- Mail original ----- De: "Josef Johansson" <jose...@gmail.com> À: "aderumier" <aderum...@odiso.com> Cc: "ceph-users" <ceph-users@lists.ceph.com> Envoyé: Mercredi 18 Mars 2015 09:04:23 Objet: Re: [ceph-users] SSD Hardware recommendation Hi Alexandre, I actually have been searching for this information a couple of times in the ML now. Was hoping that you would’ve been done with it before I ordered :) I will most likely order this week so I will see it when the stuff is being assembled :o Do you feel that there something in the setup that could be better if you would decide on hardware as of today? Also, will you try out replication set of 2 as well? Thanks Josef > On 18 Mar 2015, at 08:19, Alexandre DERUMIER <aderum...@odiso.com> wrote: > > Hi Josef, > > I'm going to benchmark a 3nodes cluster with 6ssd each node (2x10 cores > 3,1ghz). > From my previous bench, you need fast cpus if you need a lot of iops, and > writes are lot more expansive than reads. > > Now i'm you are doing only small iops (big blocks / big throughput), you > don't need too fast/many cores. > > I'm going to use intel s3610 ssd for my production cluster, can't comment > about samsung drive. > > > I'll try to post benchmark results in coming weeks. > > > ----- Mail original ----- > De: "Josef Johansson" <jose...@gmail.com> > À: "ceph-users" <ceph-users@lists.ceph.com> > Envoyé: Mercredi 18 Mars 2015 03:52:22 > Objet: [ceph-users] SSD Hardware recommendation > > Hi, > > I’m planning a Ceph SSD cluster, I know that we won’t get the full > performance from the SSD in this case, but SATA won’t cut it as backend > storage and SAS is the same price as SSD now. > > The backend network will be a 10GbE active/passive, but will be used mainly > for MySQL, so we’re aiming for swallowing IO. > > So, for 10x SSD drivers, what kind of CPU would that need? Just go all out > with two 10x cores 3.5GHz? > I read somewhere that you should use as fast CPUs that you can afford. > > Planning on using the Samsung 845 DC EVO, anyone using these in current ceph > clusters? > > We though of doing a cluster with 3 servers, and any recommendation of > supermicro servers would be appreciated. > > Cheers, > Josef > _______________________________________________ > 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
