On Wed, Sep 23, 2020 at 8:12 PM Anthony D'Atri <anthony.datri@xxxxxxxxx> wrote: > With today’s networking, _maybe_ a super-dense NVMe box needs 100Gb/s where a less-dense probably is fine with 25Gb/s. And of course PCI lanes. > > https://cephalocon2019.sched.com/event/M7uJ/affordable-nvme-performance-on-ceph-ceph-on-nvme-true-unbiased-story-to-fast-ceph-wido-den-hollander-42on-piotr-dalek-ovh I was able to reach 35 Gb/s network traffic on each server (5 servers, with 6 NVMEs per server, one OSD per NVME) during a read benchmark from cephfs, and I wouldn't treat that as a super-dense box. So 25Gb/s may be a bit too tight. -- Alexander E. Patrakov CV: http://pc.cd/PLz7 _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
 |