The command over cloud computing infrastructure is increasing with the growing demands of IT infrastructure during the changed business scenario of the 21st Century. The various constraints and limitations such as server capacity, storage, bandwidth and power, pose real-time challenges on datacenters. The expansion of conventional infrastructure as per the growing demand faces a real time constraint primarily to many inconvenience and inflexibilities. These complexities drive towards various issues like costing, deployment threats and various risk pertaining to the operation. Organizations based or operations on large scale IT infrastructure have to face these challenges accompanying in near future. Henceforth, for cost effectiveness and economy solutions, there is an enormous migration towards the cloud infrastructure. Therefore, the public cloud service providers need to evolve and develop their infrastructure to meet the challenges of the increasing demand in the IT dependent society.