The issues of energy efficiency in cloud computing based data centers

Cloud computing is a revolution nowadays, which changes the ways in which the IT-based services are being delivered to end users. It is growing or we can also say grown-up technology that offers many benefits whether in terms of economy or in terms of cost-effective resource utilization. Cloud services are being offered via data centres situated at various locations and these data centres make use of virtualization that leads to various benefits to end users. All the Giants in the field of cloud computing like Google, Amazon, and Microsoftrely totally on the data centres to fulfil the dynamic demand raised by the services. However, all the benefits of cloud-based services lead to various energy-related issues. Energy efficiency is very important from the future perspective of information communication technology (ICT). So nowadays lots of efforts are being made towards minimizing the power consumption of data centres. In the present paper, all the issues related to energy efficiency discussed and investigated. The main aim of the current paper is to study the various energy efficient techniques for the data centres and compare these approaches, to do so data has been used from various research articles, papers, and internet.