Layers and ResourcesService ModeAPPLICATIONSaasBusiness Application,Web Services,eMultimediaSBoPLATFORMPaaSSoftware FrameworkStorage (DB,File)esseINFRASTRUCTURElaasComputation,Storage(Block)HARDWARECPU, Memory, Disk, BandwidthCloud paradigm: an overall view
Cloud paradigm: an overall view
Cloud ComputingEconomical advantagesCloud computing model is attractive since it frees thebusinessownerfromtheneed toinvestintheinfrastructure (CAPEx),renting resources according toneeds and only paying for the usage. Moreover, itallows todecrease operating costs (OPEx),as serviceprovidersdo nothavetoprovisioncapacitiesaccording to peak load (in fact,resourcesare releasedwhen service demand is low).Finally, the outsourcingof the service infrastructure to the Clouds shifts thebusiness risk towards the infrastructure provider,generally better equipped to manage it
Cloud Computing • Economical advantages. Cloud computing model is attractive since it frees the business owner from the need to invest in the infrastructure (CAPEX), renting resources according to needs and only paying for the usage. Moreover, it allows to decrease operating costs (OPEX), as service providers do not have to provision capacities according to peak load (in fact, resources are released when service demand is low). Finally, the outsourcing of the service infrastructure to the Clouds shifts the business risk towards the infrastructure provider, generally better equipped to manage it
Cloud ComputingTechnical advantages.In addition to such economical advantages, Cloudcomputing guarantees a number of technical benefitsincluding: energy efficiency, optimization of hardwareandsoftwareutilization,elasticityresourceperformance isolation, and flexibility
Cloud Computing • Technical advantages. In addition to such economical advantages, Cloud computing guarantees a number of technical benefits, including: energy efficiency, optimization of hardware and software resource utilization, elasticity, performance isolation, and flexibility