A bit OT but you did you ever see http://blog.backblaze.com/2009/09/01/petabytes-on-a-budget-how-to-build-cheap-cloud-storage/ -- Regards, James ;) Pablo Picasso - "Computers are useless. They can only give you answers." - http://www.brainyquote.com/quotes/authors/p/pablo_picasso.html