Do you need a larger hard disk for backing-up to?

Do you never have a large enough hard disk to back your network of PCs, laptops and fileservers onto? Well I hear that a 120 petabyte drive is being built by researchers at IBM's Almaden laboratory. It will be the largest data repository ever built, and will comprise 200,000 hard disk drives strung together.

120 petabytes would be large enough to store over a trillion files but in home user speak could store 24 billion 5MB MP3 files. Maybe more impressively it could store 60 copies of the biggest backup of the Web, the 150 billion pages that make up the Internet Archive's WayBack Machine. So I suppose it might solve your data storage issues.