Cloud computing is as yet a subject of research. Major cloud technology companies put billions of dollars for every year in cloud Research and Development. For instance, in 2011 Microsoft committed 90 percent of its $9.6 billion R&D spending plan to its cloud. Cloud computing is useful to numerous ventures; it lowers costs and allows them to concentrate on capability rather than on issues of IT and foundation. This may result to temporary business suspension. Since this current technology's systems depend on the web, an individual can't have the capacity to get to their applications, server or data from the cloud amid a blackout.