...lies in homing in on the unusual, and recording only the 200 most interesting events every second. Even so, about 15 petabytesof data will be generated annually. If stored on CDs, this would create a 20km-high tower of discs. Once collected...
http://www.computerweekly.com/231762.htm
...Storage Solution Able to Scale to Billions of Files and Petabytesof Data Alfresco Community Edition and CAStor Connector...managing and storing content for billions of files and petabytesof data. Developed by XeniT, a partner of both companies...
http://www.prweb.com/releases/2009/07/prweb2629994.htm