# Proxmox nodes

Three Proxmox hosts form the shelf cluster: node one is the hypervisor and
gateway, node two runs the always-on containers, node three is the GPU box.

- Storage is an LVM-thin pool on the nvme, over-commit watched weekly.
- Live migration uses a dedicated bridge, not the management iface.
- The watchdog restarts a container that misses three health checks.
- Corosync traffic rides the management bridge with multicast.
- Backups of the VM configs are taken before every host upgrade.

Node three is pinned for the inference workloads, so a migration off it is
manual and only happens for a scheduled host reboot.