Author(s): M Vishnu Kumar, E Vanitha

Over the last few years, the demand for computing has grown significantly. This insists is being satisfied by very large scale, geographically distributed DCs, each containing a huge number of servers. And their corresponding power costs are on the order of millions of dollars per year. Given this the reduction by even a few percent in power cost can result in savings of millions of dollars. This paper considering the Extensive review has been carried out to reduce power cost in data centers as in both hardware and software manner. This fabricates the significant potential for exploring power cost reductions.