Open source backup solutions

If the thought of rolling your own backup system using a combination of tar, cpio, shell scripting and cron jobs does not appeal, or if you require a more advanced or robust system, there are some open source projects which you should investigate:

AMANDA -- http://www.amanda.org/

The "Automated Network Disk Archiver" was developed at the University of Maryland, and is one of the most widely deployed free backup utilities.

AMANDA is composed of two parts; a backup client which runs on a machine that has your tape storage system attached to it, and backup servers, which run on the machines which you wish to have backed up.

The client then connects to the servers and requests the data which is to be backed up, and stores it on the tape drives attached to the backup machine.