People seem to approach this from the wrong angle. The question here should always be what data do we actually genuinely need to be able to back up and restore? //

The problem was this was 30+ years ago. Imagine even in a small salon we'd backed up decades of booking data on the basis that we could easily store it given the cheapness of storage.

Now compound that problem across all businesses and throw in loads of AI toss. How much stuff is actually in backups that is never going to see the light of day again?

The volume of data that you could back up in comparison to what you genuinely need gets more and more skewed over the years. Which is part of this problem and a reason why so many people either don't have a proper strategy or find it just doesn't work when they need a restore.