Remember the Cray XK6 at the University of Illinois that drives the National Science Foundation's Blue Waters project? Well, it looks like it's getting a little memory upgrade, sorta. We're not talking a slick new SSD here, or even a sweet NAS, all that computational power requires nothing less than tape. Okay, so it's actually a full storage infrastructure, and some of it -- 25 petabytes no less -- will be disk-based. The rest
