Proxmox Backup Server

Proxmox Backup Server is where the durable data lives a second time. It backs up the services that must survive a failure — and only those: the Climb’s forge and tracker are backed up under the Outpost exception, via ZFS send / file-level backup on the Incus host, while the Range’s practice forks, ephemeral by design, are not.

It is the answer to the question every backup system answers: if a node is lost, what comes back? Whatever is here.