I have a 2 sever PVE cluster. Both have 3 NIC: eth0 for corosync, eth1 for VMs storage and for backup traffic and eth2 for LAN connection. I want to add one more NIC to separate storage and backup traffic but one server doesn't has an available PCI slot. So I'm planin to buy a new PCI with 2 NIC. What I'm asking for is: what's problem for the PVE NIC configuration when I swap the current 1 NIC PCI card with the new 2 NIC PCI card?