Summary

Nothing matters like backups. I feel like that is at least the fifth time that I have written that in this book, and it is certainly not enough. Today backups are more important than they have ever been. We face more disaster scenarios and more advanced data loss situations than ever before in our industry. Backups have always been and will likely always be our strongest defense against complete failure.

Backups have been changing, quite a lot, in the last several years. The assumptions as to how we would approach backups even ten years ago do not readily apply today, and yet many organizations still use legacy applications, legacy designs, and need to still use legacy backups. So, our job is a complex one and our desire for modern backups may be needed to drive towards more modern application designs so that we can protect them in a better way.

But now we understand the mechanisms underlying different approaches to backups, why we want to consider backing up in different...