On Wednesday 08 March 2006 10:41, John Pierce wrote: > Now for the questions, are you backing up the entire system? or just > data? I cannot fathom 500GB a month on a (how did you put it) > standard consumer level PC. If you are backing up the entire os then > maybe you should consider just the data. I have a similar problem, but in this case it's going to be 400GB per hour. Of astronomical observation data. Fortunately, the initial requirement is only a 24 hour window, and for that LTO is OK. -- Lamar Owen Director of Information Technology Pisgah Astronomical Research Institute 1 PARI Drive Rosman, NC 28772 (828)862-5554 www.pari.edu