Jamie Zawinsky has a simple backup plan that you may want to consider as well(http://www.jwz.org/doc/backups.html http://www.jwz.org/doc/backups.html). I would

Jamie Zawinsky has a simple backup plan that you may want to consider as well(http://www.jwz.org/doc/backups.html http://www.jwz.org/doc/backups.html). I would recommend one change to his strategy though, brand does matter, as in get different brands or at least models. What if there's a manufacturing defect in your Eastern Analog Brontosaurus drives? All three could fail in a very short time frame.