Now, of course, we can look at more stringent approaches to backing up data, which I already do, but for some reason I didn't elaborate on the original comment. My home server uses ZFS as storage, and I snapshot that from time to time, and I sync those snapshots to another, otherwise offline ZFS storage. The true 3-2-1 I still don't achieve, because both the online and the offline copies are at the same site, but I opted to take this risk.