How to choose a physical port for Proxmox management tasks

bluepr0

Well-Known Member
Mar 1, 2019
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Hi there!

I've finally taken the plunge and purchased a mini PC as a secondary node. While browsing Google and YouTube, I discovered a method to configure an Ethernet port solely for migrating VMs and LXCs. This is fantastic because sometimes during a migration, the Ethernet port gets saturated, causing some services to respond very slowly.

I achieved this by selecting a physical port on each node, assigning the same network, and then in Datacenter > Options > Migration Settings, choosing that same network.

However, as the name suggests, this setup only works for migration. I would like to also utilize the same Ethernet port for backups. Currently, my backup tasks save backups to an NFS share on my TrueNAS server, but I haven't found a way to specify the node to use a particular Ethernet port for backups.

The only solution I could think of is to assign a different Ethernet port to the VMs and LXCs so that the "primary" Ethernet port is free for the backups. However, there might be a way to accomplish this without resorting to such a workaround.

Thanks!
 
Currently, my backup tasks save backups to an NFS share on my TrueNAS server, but I haven't found a way to specify the node to use a particular Ethernet port for backups.
Usually you would accomplish that by creating a another subnet and giving your NAS and PVE an IP in it. You could use the same subnet for backups and migration traffic.
 
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Usually you would accomplish that by creating a another subnet and giving your NAS and PVE an IP in it. You could use the same subnet for backups and migration traffic.
Ah, nice! That could be a good approach. It's sad that there's nothing "official" to make it easier, though. :/