University of Missouri-Columbia
The proliferation of Internet services drives the data center expansion in both size and the number. More importantly, the energy consumption (as part of Total Cost of Ownership (TCO)) has become a social concern. When the workload demand is given, the data center operators' desire minimizing their TCO. On the other hand, when the workload demand is unknown while the requirements on Quality of Experience (QoE) of the Internet services are given, the data center operators need to determine appropriate amount of resources and design redirection strategies in presence of multiple data centers to guarantee the QoE.