For any organisation or even individual not to have a backup and recovery system in place is as good as being negligent. There are many great systems available whether it is for a large enterprise network or a home user using an online system for regular backup.
It is easy to forget or ignore how valuable information is until it has been destroyed or lost. While the thought of loss of data through a flood or fire may seem dramatic and remote, it is often human error that causes the problems and of course computer viruses that can destroy vital information and can cause havoc.