The move to a service provider model is one of the most significant shifts we are seeing in data centers around the world. This is occurring as two key developments are afoot:  First, many organizations are making moves to use Service Provider and public cloud capacity, and Second, there is an internal shift within organizations towards a model wherein they are provide Infrastructure-as-a-Service for their internal business units. This is all headed towards a model where enterprises have detailed reporting on the usage of that infrastructure, if not bill-back for the actual usage. MORE