2026-08-24

If you're running a Jellyfin server (and plenty of homelabbers are), this XDA guide is a solid reality check on what actually keeps your media library safe.

The author runs through four layers of protection for their setup: RAID, filesystem snapshots, local backups, and offsite/cloud backups. The key takeaway — and it's one worth repeating — is that RAID is not a backup. It protects against a single drive failure, but it won't save you from accidental deletion, ransomware, filesystem corruption, or a house fire. Most of us know this in theory; fewer of us have actually sorted all four layers.

What makes this useful is the practical, no-nonsense framing. Snapshots (via ZFS or Btrfs) give you quick rollback for mistakes. A local backup to a separate device covers hardware failures. And an offsite copy — even a basic encrypted rclone job to cheap cloud storage — covers the catastrophic stuff. None of this requires enterprise kit.

For UK homelabbers, the advice translates directly. A spare drive in an external enclosure makes a perfectly good local backup target, and services like Backblaze B2 or Hetzner Storage Boxes are cheap enough for even large media libraries if you're selective about what you replicate offsite.

Caveats: The article is focused on one person's setup, so your mileage will vary depending on your storage platform and budget. It doesn't go deep on encryption or versioning strategies, and if you're already running a mature ZFS or Unraid array with proper snapshots, there's nothing groundbreaking here. But if you've been meaning to sort your backup story and keep putting it off, it's a good nudge.

If you need an external enclosure for a local backup drive, our M.2 SSD Enclosure – NVMe & SATA USB External Aluminium Case works well for repurposing a spare NVMe or SATA M.2 SSD as a portable backup target. For bigger libraries, an USB 3.0 SATA dock and a spare HDD is the budget classic.