Envisaging the size of data warehouses can be hard and these snippets are from a much larger infographic on mozy.com which communicates data volume very well. The whole post is here and is worth a look if you need to put data volume into context.
Our biggest warehouse table has just over 43 million rows in it. This is a daily periodic snapshot of enrolment which we’ve been running since July 2007. With a row length of 82 bytes that equates to a mere 3.2GB. A relative drop in the petabyte ocean…



