Elasticity in Cloud Computing Case Study: Sudan Electronic Passport Cloud Computing

Cloud computing is a new technology which managed by a third party "cloud provider" to provide the clients with services anywhere, at any time, and under various circumstances. In order to provide clients with cloud resources and satisfy their needs, cloud computing employs virtualization and resource provisioning techniques. The process of providing clients with shared virtualized resources (hardware, software, and platform). One of types of cloud computing is Private cloud is a computing model that offers a proprietary environment dedicated to a single business entity. The e-passport private cloud computing is one of the first private cloud computing in Sudan. In this paper we study the migration of electronic passport (e- passport) datacenter from a traditional physical datacenter to a highly elastic virtual data canter using virtual technology (hypervisor). We followed elasticity in epassport cloud computing through explain the concept of virtual data center, private cloud, cloud computing service models, Virtualization and explain the e-passport cloud components .We made a comparison between the physical electronic passport data center and the virtual electronic passport data center (the e-passport private cloud computing) in term of elements (number of servers, number of processors, size of RAM and down time). Finally we monitor the comparison result to clarify the extent in elasticity when transition to e-passport cloud computing.