How about testing the actual network throughput with iperf? Even today
there are speed/duplex mismatches on switch ports. And what everyone else
said about saturation etc.
We get, at absolute worst, 600 MB/s on a 10G connection.
--
Alex Gorbachev
https://alextelescope.blogspot.com
On Tue, Mar 11, 2025 at 6:57 AM Giovanna Ratini <
giovanna.ratini@xxxxxxxxxxxxxxx> wrote:
> Hello everyone,
>
> We are running Ceph in Proxmox with a 10G network.
>
> Unfortunately, we are experiencing very low read rates. I will try to
> implement the solution recommended in the Proxmox forum. However, even
> 80 MB per second with an NVMe drive is quite disappointing.
> Forum link
> <
> https://forum.proxmox.com/threads/slow-performance-on-ceph-per-vm.151223/#post-685070
> >
>
> For this reason, we are considering purchasing a 100G switch for our
> servers.
>
> This raises some questions:
> Should I still use separate networks for VMs and Ceph with 100G?
> I have read that running Ceph on bridged connections is not recommended.
>
> Does anyone have experience with 100G Ceph in Proxmox?
>
> Is upgrading to 100G a good idea, or will I have 60G sitting idle?
>
> Thanks in advance!
>
> Gio
>
>
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