On Wed, 9 Apr 2014 14:59:30 +0800 Punit Dambiwal wrote: > Hi, > > I have changed my plan and now i want to use the following supermicro > server :- > > SuperStorage Server 6047R-E1R24L > > Can any one tell me....is this server is good for the OSD nodes...two ssd > on RAID1 (OS & journal) and 24 HDD for OSD (JBOD on the motherboard > controller). > Wrong on so many levels.
Firstly, 2 SSDs (really just one if you're using RAID1 for the journal partitions as well) for 24 OSDs. The SSD will be a speed bottleneck and also have to handle ALL the writes that ever happen to the whole machine (meaning it will wear out quickly). If you want/need SSD journals, a sensible ratio would be 3-4 OSDs per journal SSD (partitioned into the respective amount of journals). So something like 6 SSDs and 18 HDDs. Secondly that backplane is connected to the HBA with one mini-SAS link. That means at best 4 lanes of 6Gb/s for 24 drives, but it might be just one lane, the manual is typical Supermicro quality. =.= Another, potentially massive bottleneck. Also what are your goals in term of throughput, IOPS here? If you're planning on getting lots of 24 disk boxes, fine. Otherwise you might be better off getting smaller nodes. Regards, Christian. > > > > > > On Fri, Apr 4, 2014 at 11:51 AM, Ирек Фасихов <malm...@gmail.com> wrote: > > > You need to use Dell OpenManage: > > > > https://linux.dell.com/repo/hardware/. > > > > > > > > 2014-04-04 7:26 GMT+04:00 Punit Dambiwal <hypu...@gmail.com>: > > > >> Hi, > >> > >> I want to use Dell R515/R510 for the OSD node purpose.... > >> > >> 1. 2*SSD for OS purpose (Raid 1) > >> 2. 10* Segate 3.5' HDDx 3TB for OSD purpose (No RAID...JBOD) > >> > >> To create JBOD...i created all 10 HDD as raid0....but the problem is > >> when i will plug out the HDD from the server and plug-in again,i need > >> to import the RAID configuration again to make this OSD working.... > >> > >> Can anyone suggest me good way to do this ?? > >> > >> Thanks, > >> Punit > >> > >> _______________________________________________ > >> ceph-users mailing list > >> ceph-users@lists.ceph.com > >> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > >> > >> > > > > > > -- > > С уважением, Фасихов Ирек Нургаязович > > Моб.: +79229045757 > > -- Christian Balzer Network/Systems Engineer ch...@gol.com Global OnLine Japan/Fusion Communications http://www.gol.com/ _______________________________________________ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
