Green Cloud Computing Resource Managing Policies a Survey

Green cloud is a buzzword that refers to the potential environmental benefits that information technology (IT) services delivered over the Internet will offer society. The word combines the words green -- meaning environmentally friendly and cloud, the traditional image for online and the shortened name for a type of service delivery model known as cloud processing. According to market research performed by Pike Research, the wide-spread use of cloud processing could trigger a potential 38 % decrease in worldwide data center energy expenditures by 2020. The savings is primarily accomplished by consolidating data centers and maximizing power usage efficiency (PUE), improving recycling efforts, bringing down carbon and gas emissions and minimizing water usage in cooling the rest of the centers. Because so much of a data centers energy expenditures support data storage space, the Storage Networking Industry Association (SNIA) features promoted new technologies and architectures to help save energy. This paper surveys resource allocation techniques to enhance power consumption by cloud information centers supporting green cloud computing.