Virtualisation technologies have set in motion a comprehensive transformation of IT.
Virtualisation is not only creating a more dynamic IT environment, but it is also shifting the role of IT departments from a support role (i.e., cost center) to an active participant in the development of a winning business strategy.
As a result, virtualisation requires you to think about what you are trying to accomplish in fundamentally different ways. The one-to-one ratio of applications to servers is only one of the conventions that have been retired. Systems that would have taken weeks, if not months, to deploy in the physical world can be deployed in hours in a virtualised environment. The implications of these changes are both profound and vastly desirable.