On Wed, Sep 23, 2020 at 8:12 PM Anthony D'Atri <anthony.datri(a)gmail.com> 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-…
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