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Building a Bulletproof Backup: Crafting a Proxmox Backup Server with Dedicated Backhaul Networking
Welcome to Homelab Dispatch. Today we’re diving into a recent build log from a Redditor who spun up a Proxmox Backup Server in a VM, complete with its own dedicated backhaul network.
They started by standing up Proxmox VE on a small tower, then carved out a VM just for backups. Instead of using the main LAN, they created a 192.168.2.0/24 “backhaul” network on 10 gigabit hardware. The host’s secondary NICs were bridged to that network, isolating backup traffic from regular data flow.
Inside the VM, they passed through an LSI HBA controller directly to the guest, attached two mirrored disks formatted with ext4, and configured a single datastore. As they put it, “I’m seeing consistent write speeds around 200 MB/s and peek restores at 700 MB/s.”
They set up Proxmox Backup Server’s datastore via /etc/proxmox-backup/datastore.cfg, restarted the service, and then tested with the built-in backup client. The result? A rock-solid, high-speed backup infrastructure without touching the main lab network. That’s it for today’s homelab highlight—see you next time!
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By jawbreaker.ioWelcome to Homelab Dispatch. Today we’re diving into a recent build log from a Redditor who spun up a Proxmox Backup Server in a VM, complete with its own dedicated backhaul network.
They started by standing up Proxmox VE on a small tower, then carved out a VM just for backups. Instead of using the main LAN, they created a 192.168.2.0/24 “backhaul” network on 10 gigabit hardware. The host’s secondary NICs were bridged to that network, isolating backup traffic from regular data flow.
Inside the VM, they passed through an LSI HBA controller directly to the guest, attached two mirrored disks formatted with ext4, and configured a single datastore. As they put it, “I’m seeing consistent write speeds around 200 MB/s and peek restores at 700 MB/s.”
They set up Proxmox Backup Server’s datastore via /etc/proxmox-backup/datastore.cfg, restarted the service, and then tested with the built-in backup client. The result? A rock-solid, high-speed backup infrastructure without touching the main lab network. That’s it for today’s homelab highlight—see you next time!
Link to Article