INTRODUCTION TO CLOUD COMPUTING ggg UNDERSTANDING CLOUD COMPUTING UNDERSTANDING CLOUD COMPUTING DEFINITION CLOUD COMPUTING.

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    03-Jan-2016

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INTRODUCTION TO CLOUD COMPUTINGgggCLOUD COMPUTINGunderstanding cloud computingTraditional software with licensesSoftware as a servicesCLOUD COMPUTINGPay as you GoPer Monthly understanding cloud computingunderstanding cloud computingSAAS PAASVIRTUALIZATIONIAASUTILITY COMPUTINGDEFINITIONS:"Clouds are a large pool of easily usable and accessible virtualized resources (such as hardware, development platforms and/or services). These resources can be dynamically reconfigured to adjust to a variable load (scale), allowing also for an optimum resource utilization. This pool of resources is typically exploited by a pay-per-use model in which guarantees are offered by the Infrastructure Provider by means of customized SLA- Vaquero, L., L. Rodero-Merino, et al. (2008)Cloud computing is simply a buzzword used to repackage grid computing and utility computing, both of which have existed for decades.Evolution from Grid to Cloud ComputingPublic Cloud: The services are delivered to the client via the Internet from a third party service provider.Example: AmazonPrivate Cloud: These services are managed and provided within the organization. There are less restriction on network bandwidth, fewer security exposures and other legal requirements compared to the public Cloud.Example: HP Data Centers It is a combination of services provided by the Private and public cloudExample: ERP in private cloud Sales & Email in publicIAAS (Infrastructure as a service)Offers capacity for rent, basically hosted data centers and ServersAn evolution of web site and server hosting services provided by VPSExamples:Verizon's CAAS (Computing as a service)AT&T (Hosting & Storage)IAAS PAAS (Platform as a service)Platforms enable application developers to host their servicesExample:Googles App EngineAmazon E2CMicrosoft azurePAAS SAAS Software as a serviceThe application itself is provided by service providerExamples:ENTERPRISE: SalesForce.com, WebEx, OfficeliveUSER MAIL: gmail, Hotmail, YahooUSER PICS: flickr, picasaSAAS AmazonMicrosoft windows AzureSavvisGoogle App EngineVmware cloudRack space Go gridReduced Hardware equipment for end users Improved Performance Lower Hardware and Software Maintenance Instant Software Updates AccessibilityPay for what we useSecurity Issues Internet connection Features may be limited Location of ServersSpeed

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