I have a home server that I’m using and hosting files on it. I’m worried about it breaking and loosing access to the files. So what method do you use to backup everything?
ITT: lots of the usual paranoid overkill. If you do rsync with the --backup switch to a remote box or a VPS, that will cover all bases in the real world. The probability of losing anything is close to 0.
The more serious risk is discovering that something broke 3 weeks ago and the backups were not happening. So you need to make sure you are getting some kind of notification when the script completes successfully.
While I don't agree that using something like restic is overkill you are very right that backup process monitoring is very overlooked. And recovering with the backup system of your choice is too.
I let my jenkins run the backup jobs as I have it running anyways for development tasks. When a job fails it notifies me immediately via email and I can also manually check in the web ui how the backup went.