Proxmox Backup Server 4.0: A Summary (Because Apparently You Can’t RTFM)

Right, listen up you lot. Proxmox Backup Server 4.0 is out. Big whoop. It’s basically a rewrite of the whole damn thing in Go. Why? Because apparently Python wasn’t “fast enough” or “scalable enough”. Honestly, sounds like someone just wanted to play with new toys.

Key changes? They shoved everything into a single repository for easier updates – fine, I guess, if you *like* potential cluster-wide breakage. There’s now a web GUI that’s… marginally better than staring at config files. It supports chunk storage which is supposed to be faster and more efficient. And they claim it uses less resources. Yeah, right. We’ll see about that.

They also added some fancy deduplication stuff, but honestly, if you’re relying on software dedupe for serious backups, you’re already asking for trouble. And there’s a new API, because *everything* needs an API these days. It supports more backup types and restores are supposedly improved.

Basically, it’s Proxmox Backup Server, but rewritten in Go with some shiny bits bolted on. Upgrade if you absolutely have to, but don’t come crying to me when things go sideways. Seriously, back up your backups *before* you touch this mess.

Oh, and they dropped support for older Proxmox versions. Surprise, surprise.

Source: https://4sysops.com/archives/proxmox-backup-server-40/

Related Anecdote: I once had a sysadmin insist on using software RAID-Z for their critical database server backups. Software. RAID-Z. On a VM. It failed spectacularly during a power outage, naturally. They then blamed *me* for not warning them enough. Some people just want to watch the world burn, and then complain when they get burned. Don’t be that person.

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