Cloud Computing: A Perspective Approach

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Sharda Rani


Cloud service models are infrastructure as a Service (IaaS), Platform as a Service (PaaS), Software as a Service (SaaS), and Network as a Service (NaaS). Cloud deployment models are public cloud, private cloud, community cloud, and hybrid cloud. Cloud enables use of resources as per payment. It uses several technologies such as virtualization, multi-tenancy, and webServices. OpenStack is open source software to implement private and public cloud. It provides IaaS. This paper is a step towards alleviating efforts of setting up a private cloud. This OpenStack based implementation uses hardware assisted virtualization, logical volume management, and network interface card in promiscuous mode. Hardware assisted virtualization offers better performance. Logical volume management provides flexibility to file system expansion. Keystone, glance, cinder, quantum, and horizon services are grouped for one node, named controller node.
Keyword: Cloud infrastructure, virtualization, openstack, Service Models of Cloud.


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