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Private cloud


A private cloud is a particular model of cloud computing that involves a distinct and secure cloud based environment in which only the specified client can operate. As with other cloud models, private clouds will provide computing power as a service within a virtualized environment using an underlying pool of physical computing resource. However, under the private cloud model, the cloud (the pool of resource) is only accessible by a single organization providing that organization with greater control and privacy.
The additional security offered by the ring fenced cloud model is ideal for any organization, including enterprise, that needs to store and process private data or carry out sensitive tasks. For example, a private cloud service could be utilized by a financial company that is required by regulation to store sensitive data internally and who will still want to benefit from some of the advantages of cloud computing within their business infrastructure, such as on demand resource allocation.

The private cloud model is closer to the more traditional model of individual local area networks (LANs) used in the past by enterprise but with the added advantages of virtualization. The features and benefits of private clouds therefore are:

Private clouds – using techniques such as distinct pools of resources with access restricted to connections made from behind one organization’s firewall can ensure that operations are kept out of the reach of prying eyes.
As a private cloud is only accessible by a single organization, that organization will have the ability to configure and manage it inline with their needs to achieve a tailored network solution.
Implementing a private cloud model can improve the allocation of resources within an organization by ensuring that the availability of resources to individual departments / business functions can directly and flexibly respond to their demand.
Even where resources (servers, networks etc.) are hosted internally, the creation of virtualized operating environments means that the network is more resilient to individual failures across the physical infrastructure.
Some providers may offer the opportunity to employ cloud bursting, within a private cloud offering, in the event of spikes in demand. This service allows the provider to switch certain non-sensitive functions to a public cloud to free up more space in the private cloud for sensitive functions that require it.