Lecture notes on cloud computing IV b. Tech-1 st semester prepared by
THE ENTERPRISE CLOUD COMPUTING PARADIGM
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| THE ENTERPRISE CLOUD COMPUTING PARADIGM Relevant Deployment Models for Enterprise Cloud Computing There are some general cloud deployment models that are accepted by the majority of cloud stakeholders today Public clouds are provided by a designated service provider for general public under a utility based pay-per-use consumption model. The cloud resources are hosted generally on the service providers premises. Popular examples of public clouds are Amazons AWS EC, S etc, Rackspace Cloud Suite, and Microsoft‘s Azure Service Platform. Private clouds are built, operated, and managed by an organization for its internal use only to support its business operations exclusively. Public,private, and government organizations worldwide are adopting 46 this model to exploit the cloud benefits like flexibility, cost reduction, agility and soon) Virtual private clouds area derivative of the private cloud deployment model but are further characterized by an isolated and secure segment of resources, created as an overlay on top of public cloud infrastructure using advanced network virtualization capabilities. Some of the public cloud vendors that offer this capability include Amazon Virtual Private Cloud , OpSource Cloud , and Skytap Virtual Lab. 4) Community clouds are shared by several organizations and support a specific community that has shared concerns (e.g., mission, security requirements, policy, and compliance considerations. They maybe managed by the organizations or a third party and may exist on premise or off premise. One example of this is OpenCirrus formed by HP,Intel, Yahoo, and others. 5) Managed clouds arise when the physical infrastructure is owned by and/or physically located in the organizations data centers with an extension of management and security control plane controlled by the managed service provider. This deployment model isn‘t widely agreed upon, however, some vendors like ENKI and NaviSite‘s NaviCloud offers claim to be managed cloud offerings. 6) Hybrid clouds area composition of two or more clouds (private, community,or public) that remain unique entities but are bound together by standardized or proprietary technology that enables data and application. Download 1.49 Mb. Share with your friends:
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