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Cloud Computing Concepts: Hybrid Cloud

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Cloud Computing Concepts: Hybrid Cloud



The Hybrid Cloud is a mixture of public and private cloud. Non-critical activities are performed using public cloud while the critical activities are performed using private cloud.

A hybrid cloud is an integrated cloud service utilizing both private and public clouds to perform distinct functions within the same organization. All cloud computing services should offer certain efficiencies to differing degrees but public cloud services are likely to be more cost efficient and scalable than private clouds.

An organization can maximize their efficiencies by employing public cloud services for all non-sensitive operations, only relying on a private cloud where they require it and ensuring that all of their platforms are seamlessly integrated.

Hybrid cloud models can be implemented in a number of ways:

·         Separate cloud providers team up to provide both private and public services as an integrated service

·         Individual cloud providers offer a complete hybrid package

·         Organizations who manage their private clouds themselves sign up to a public cloud service which they then integrate into their infrastructure

In practice, an enterprise could implement hybrid cloud hosting to host their e-commerce website within a private cloud, where it is secure and scalable, but their brochure site in a public cloud, where it is more cost effective (and security is less of a concern)



Features and Benefits of Hybrid Cloud


Scalability: whilst private clouds do offer a certain level of scalability depending on their configurations (whether they are hosted internally or externally for example), public cloud services will offer scalability with fewer boundaries because resource is pulled from the larger cloud infrastructure. By moving as many non-sensitive functions as possible to the public cloud it allows an organization to benefit from public cloud scalability whilst reducing the demands on a private cloud.

Cost efficiencies: Again public clouds are likely to offer more significant economies of scale (such as centralized management), and so greater cost efficiencies, than private clouds. Hybrid clouds therefore allow organizations to access these savings for as many business functions as possible whilst still keeping sensitive operations secure

Security: the private cloud element of the hybrid cloud model not only provides the security where it is needed for sensitive operations but can also satisfy regulatory requirements for data handling and storage where it is applicable

Flexibility: the availability of both secure resource and scalable cost effective public resource can provide organizations with more opportunities to explore different operational avenues


Network Issues: Networking becomes complex due to presence of private and public cloud.

Security Compliance: It is necessary to ensure that cloud services are compliant with organization's security policies.

Infrastructural Dependency: The hybrid cloud model is dependent on internal IT infrastructure, therefore it is necessary to ensure redundancy across data centers.

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