What is server-free backup, and how does it work?
Server-free backup is an umbrella term for two different kinds of backup. The general distinction is that it is backup that is going to be done outside of the server that is being backed up — hence the name. Some of the methods for doing server-free backup actually use another server, so some people don’t consider them server free. But, they are still free of the server that is being backed up. There are a number of different ways that this is accomplished, and they generally have an alternate copy of the data, such as a business continuous volume (BCV) or a split-mirror, or perhaps a snapshot, and then present that data to some other system or device that can copy the data to tape. The typical way that this is done is via a dedicated backup server. So, you have a server that’s being backed up. It’s using data that’s on the storage area network (SAN), which is being controlled and split off and snapped by a backup server. Then, that extra copy of the data is presented to another serve
