Advice for Best Network Throughput for PBS with 2x 2.5GbE Ports -- NFS vs. SMB Multichannel?

Sep 1, 2022
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(These are the fastest ports this machine is going to have for the foreseeable future.)

tl;dr: What's the recommended way to max write speeds in the below scenario?

My storage server has a 2x enterprise SATA SSD mirror, and 2x Intel 2.5 GbE NICs (the good ones). So, theoretically, the fastest read the mirror can handle is 12 Gbps, and the fastest write is 6 Gbps (yes, I know, overhead will mean I never hit that, but ...)

I'd like to give my PBS instance the best possible write speed from my two 2.5 Gbps NICs (~5 Gbps) when doing backups, but I'm not sure how to go about that.

LACP
won't boost write speed on its own.

SMB Multichannel does exactly what I want, but I have no idea if/how that works with a PBS storage being used by a Proxmox node. I've always stored and accessed all my ISOs and VMs/CTs that live on the network via NFS. The idea of using SMB seems wrong, as I'm not sure how respectful it'll be of PVE/PBS permissions, but I could be overthinking it.

NFS Multipathing ... is a thing. I've never used it and don't really know if it's even a viable option for maximizing throughput. In my (admittedly still newbie) research, tutorials are focused on actual physical multipathing (this switch failed, so try the wire plugged into the other one).

Thanks!
 

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