Current Methodologies for Energy Efficient Cloud Data Centers

Abstract

Cloud computing is a novel paradigm which is currently defining a new style of system deployment and is realizing the vision of delivering computing as a utility. This is resulting in a heightened cost of ownership, a reduced return on investment, smaller profit margins, decreased reliability and availability of data center resources, and above all it adversely affects the environment through its increasing carbon footprint. While meeting Quality of Service constraints, providers also need to deliver services to users which meet current green criteria. Servers in data centers consume a large amount of energy, making cooling systems necessary. As a result, it is of utmost importance to optimize energy utilization in these datacenter servers. To achieve this we can consume less power of virtualization in cloud computing. Virtualization is a technique which is very useful in the consolidation of virtual machines. In this chapter, a detailed explanation of the current and relevant methodologies relating to energy efficient cloud data centers is presented and the limitations of those methodologies and associated techniques are discussed.