Cisco Inferno comments:

The last five years have seen such a monumental shift in the data centre. Data centres have come a long way. The shift from rows of boxes with a 1:1 service to server ratio now reach 100:1. We have seen investment in storage, the arms race for the best servers, storage, and who can deliver  the highest density 100 gigabit connectivity.

Read more at:  Software Defined Data Centre