[arethuza]

And you need to check that you can actually restore from backups - which is a step a remarkable number of people forget to do.

[kwhitefoot]

I was a Unix administrator responsible for backup many years ago. When I asked the manager of the IT department for funds to do a disaster recovery exercise I was turned down flat and told that no amount of discussion would change his mind.

We knew that we could restore individual files because users asked for them when they had accidentally deleted them but we had no idea whether or not our procedures for restoring the systems themselves would work.

Luckily we never had to find out.