ABSTRACT
Many motivating factors have led to the emergence of cloud computing. Businesses require services that include both infrastructure and application workload requests while meeting dened service levels for capacity, resource tiering, and availability. IT delivery often necessitates costs and efciencies that create a perception of IT as a hindrance, not a strategic partner. Issues include underutilized resources, over-provisioning or under-provisioning of resources, lengthy deployment times, and lack of cost visibility. Virtualization is the rst step toward addressing some of these challenges by enabling improved utilization through server consolidation, workload mobility through hardware independence, and efcient management of hardware resources.
