Helps organizations to lower costs and energy while increasing application availability. Physical server can be divided into multiple unique and isolated virtual servers by means of a software application. Server virtualization provides a way for companies to practice redundancy without purchasing additional hardware running the same application on multiple servers. If a server fails for any reason, another server running the same application can take its place. This minimizes any interruption in service. Each virtual server can run its own operating systems independently to achieve higher server availability, reduce costs, provision software applications quicker and cut on power and cooling costs.