The first thing I learned when I got into I.T. (called data processing) was that having backups was the most important concept. Backups were done by copying punched cards to reel-to-reel tapes that were stored offsite.

Once the backup is in place, be sure to restore from it to test it out. There's nothing worse than having a backup plan and schedule to find out there's a problem when you need to restore. Having no backup is better than having one that you assume is working and it is not. Maybe the two are equally bad. :unsure: