A backup you have never restored is still an assumption about recovery. It is worth paying attention to whether backup jobs run successfully, but a green check mark does not necessarily mean you can recover your data when something breaks.
The distinction is between creating backups and building a recovery strategy. The question is not only whether a backup process finished. It is whether you could rebuild your homelab if the server disappeared.
Think beyond the backup status
Backup jobs can give a false sense of security when their success becomes the whole definition of being protected. Restore testing belongs in the normal backup process because it addresses the recovery question directly. An untested backup has not answered that question yet.
Snapshots and RAID also belong in this discussion, but neither replaces backups. Keep that distinction in view when thinking about a NAS, a Linux server, or virtual machines. The presence of those other protection mechanisms does not remove the need to think about backups and recovery.
Consider what needs protection
A homelab recovery discussion includes more than one kind of workload. NAS backups, Linux server backups, virtual machine backups, configuration backups, database recovery, and self-hosted application recovery are all topics in this video. Recovery documentation is part of that discussion as well.
These topics frame the question of what you would need to rebuild. They are not a universal restore procedure. A database recovery plan, an application recovery plan, and the details of an individual backup system need verification for the actual setup before anyone relies on them.
Make the recovery question concrete
Testing at least one full restore before you need it is the recommendation here. The goal is to connect the backup process with an actual recovery question, rather than to make backup strategies more complicated. This companion article does not prescribe a retention schedule, a storage layout, or a recovery time.
For a homelab, self-hosted services, or a Linux learning environment, keep returning to the same question: if the server disappeared today, could you rebuild it? A successful backup job is useful information. Restore testing is the part of the discussion that asks whether that backup supports recovery.
~ KeepItTechie