After a couple of months my Moodle instance has become absolutely integral to my classes. I have transitioned almost all of my curriculum over to it and eliminated nearly all paper. we still print pick tickets, blank inventory sheets, certificates and resumes for students but that is about it.
After putting all the work into it, I knew I needed a good backup solution but due to a very limited budget at the agency where I work it had to be free. I have a spare Dell GX240 identical to my Moodle box so the hardware was taken care of quite nicely. I set up FreeNAS on a machine and I use CloneZilla to create and write images to it on the LAN. In the event of a failure I can restore from the image to the spare unit in less than 45 minutes. Once a week I store an image offsite just to cover all my bases.
It isn't automated or invisible but I like the hands on aspect of knowing that my entirely free and open source disaster recovery plan is in place.
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