UNIT III Layered Cloud Architectural Development.pdf - Layered Cloud Architectural Development The architecture of a cloud is developed at three layers

UNIT III Layered Cloud Architectural Development.pdf -...

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Layered Cloud Architectural Development The architecture of a cloud is developed at three layers: infrastructure, platform, and application, as demonstrated in figure. These three development layers are implemented with virtualization and standardization of hardware and software resources provisioned in the cloud. The services to public, private, and hybrid clouds are conveyed to users through networking support over the Internet and intranets involved. Infrastructure layer is deployed first to support IaaS services. This infrastructure layer serves as the foundation for building the platform layer of the cloud for supporting PaaS services. In turn, the platform layer is a foundation for implementing the application layer for SaaS applications. Different types of cloud services demand application of these resources separately. The infrastructure layer is built with virtualized compute, storage, and network resources. The platform layer is for general-purpose and repeated usage of the collection of software resources. This layer provides users with an environment to develop their applications, to test operation flows, and to monitor execution results and performance. Virtualized cloud platform

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