Crash Course in Open Source Cloud Computing - Mil-OSS
Crash Course in Open Source Cloud Computing - Mil-OSS
Crash Course in Open Source Cloud Computing - Mil-OSS
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<strong>Cloud</strong> Comput<strong>in</strong>g Service ModelsUSER CLOUD a.k.a. SOFTWARE AS A SERVICESaaSS<strong>in</strong>gle application, multi-tenancy, network-based, one-to-many delivery ofapplications, all users have same access to features.Examples: Salesforce.com, Google Docs, Picasa, SugarCRMDEVELOPMENT CLOUD a.k.a. PLATFORM-AS-A-SERVICEPaaSApplication developer model, Application deployed to an elastic servicethat autoscales, low adm<strong>in</strong>istrative overhead. No concept of virtualmach<strong>in</strong>es or operat<strong>in</strong>g system. Code it and deploy it.Examples: Google AppEng<strong>in</strong>e, W<strong>in</strong>dows Azure, Rackspace Site, Red HatMakara/<strong>Open</strong>Shift, <strong>Cloud</strong>FoundrySYSTEMS CLOUD a.k.a INFRASTRUCTURE-AS-A-SERVICEIaaSServers and storage are made available <strong>in</strong> a scalable way over a network.Examples: EC2,Rackspace <strong>Cloud</strong>Files, <strong>Open</strong>Stack, <strong>Cloud</strong>Stack,Eucalyptus, Ubuntu Enterprise <strong>Cloud</strong>, <strong>Open</strong>Nebula
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