The virtualization and cloud computing are complimentary concepts for many organizations and these two terms are often substituted for one another. Together, they are creating a new era where companies are granted the freedom to run their applications without having to conduct non-strategic IT functions such as patches, updates and backups. Virtualization acts as the base for cloud computing and helps deliver on the value of cloud computing. With virtualization, one can create virtual machines, scale virtual machines up/down via manual processes without service disruption.

Cloud computing is accessed through the internet and can make use of virtualization. Certain operating systems, hardware systems, and even application clusters, deliver cloud services. Cloud computing is nothing but delivery of computing resources, data and storage resources as a service to end users over a network.

The main difference is that in virtualization one is controlling the internal management of hardware and in cloud computing, services are already taken care by the provider of one’s wide area network.

There are number of components used to build the cloud infrastructure. The cloud computing enables virtualization of machines independent of physical location. At the lowest layer, there are hardware components such as servers, storage and network components. It can be described as a service where virtualization is part of a physical infrastructure. All the concepts or operations applicable on the single machine are applicable to virtual machines deployed on the cloud.

In cloud computing, self service is a crucial concept to deliver availability to any user at any time. All the resources are more generally considered ephemeral--spin it up, use it, delete it when you are done. Virtualization still treats instances, volume and network as independent elements to be virtualized. Cloud computing treats them all as unified resources.

Celestial’s virtualization services employ a simple process in which software is used to simulate hardware. It can exist without the cloud. But cloud computing cannot exist without virtualization. Cloud computing allows businesses to store and access applications and data on virtual servers, rather than in a physical machine. Many organizations have deployed virtualization by creating virtual servers on top of networking, storage and security stacks.



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