Analysis of energy consumption model in cloud computing environments

Cloud computing offers software as a service (SaaS), infrastructure as a service (IaaS), and platform as service (PaaS) on pay-as-you-go model over the Internet. Although Cloud have been attractive to businesses and other domains to accommodate their increasing demand for computational power on demand bases, the high energy consumption of Cloud data centers has recently become a serious issue. The high energy consumption not only causes the energy wastes and system instability but also generates low return on the investment (ROI) and adverse effects on the environment. Therefore, it is extremely necessary to reduce energy consumption while meeting the quality of service (QoS). This chapter presents a fine-grained energy consumption model and analyzes its effectiveness in energy consumption of data centers.