Using the linux command 'dd' you can clone a partition to a .img file. I have used this method for duplicating flash drives for use with many servers in the past. Then if one goes down, it is very easy to restore it if needed.
Does anyone know if a similar thing is possible to do over a network? I have a Redhat server that I would like copy everything from, in order to create a Fedora server with the same settings.