Cloud Computing, easy to manage, scalable according to needs, which is easily accessible from many different devices, common resources can be defined as information services offered on. Cloud Computing, which offers flexible structure of institutions is helping to manage IT services. Cloud approach, reduce costs, although reducing the risks offers a safer work environment. In this study of institutions with large-scale data centers, cloud computing service model, which is offered as a service infrastructure to the method of how to virtualize physical servers can reduce costs is discussed. In this context, data center, an institution consisting of purely physical server, the existing server resources that can be scaled, high availability and disaster recovery structure on a virtual platform for the transfer and the benefits gained from the studies are mentioned.