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When the data stored enters the petabyte range (1000 terrabytes) and above, the use of scaling and massive parallelism become different than what one might find in a traditional IT environment. This of course means that IT management of data and servers must change because at some point, you can't just scale up the number of staff you have to manage this equipment and the software that runs on it. New tools and techniques are required to handle these changes as they move from the evolutionary to the revolutionary.