> Op 5 juli 2017 om 10:54 schreef Massimiliano Cuttini <max@xxxxxxxxxxxxx>: > > > Dear all, > > luminous is coming and sooner we should be allowed to avoid double writing. > This means use 100% of the speed of SSD and NVMe. > Cluster made all of SSD and NVMe will not be penalized and start to make > sense. > > Looking forward I'm building the next pool of storage which we'll setup > on next term. > We are taking in consideration a pool of 4 with the following single > node configuration: > > * 2x E5-2603 v4 - 6 cores - 1.70GHz You will need a faster CPU to get the maximum out of your OSDs. IOps inside a OSD are single threaded, so if you want low-latency for a single I/O you will need a faster CPU. Something like a 3Ghz CPU. For example the E5-2643 v4 6core, 3.7Ghz > * 2x 32Gb of RAM > * 2x NVMe M2 for OS > * 6x NVMe U2 for OSD > * 2x 100Gib ethernet cards > > We have yet not sure about which Intel and how much RAM we should put on > it to avoid CPU bottleneck. > Can you help me to choose the right couple of CPU? > Did you see any issue on the configuration proposed? > > > Thanks, > Max > > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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