Visualising Data Warehouse Volumes

July 13th, 2009 by Rob Hale Leave a reply »

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.

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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…

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