Hybrid cloud
The hybrid cloud is a composition of two or more clouds (private, community or public) that are still distinct entities but are linked together, offering the benefits of multiple deployment models.
The hybrid cloud can also mean the ability to connect placement, managed and / or dedicated services with resources in the cloud. Gartner defines a hybrid cloud service as a cloud computing service that is composed of a combination of private, public and community cloud services from different service providers. A hybrid cloud service crosses the isolation and limits of providers so that it can not be simply located in a category of private, public or community cloud services. Allows you to expand the capacity or capacity of a service in the cloud, through aggregation, integration or customization with another service in the cloud.
The hybrid cloud can also mean the ability to connect placement, managed and / or dedicated services with resources in the cloud. Gartner defines a hybrid cloud service as a cloud computing service that is composed of a combination of private, public and community cloud services from different service providers. A hybrid cloud service crosses the isolation and limits of providers so that it can not be simply located in a category of private, public or community cloud services. Allows you to expand the capacity or capacity of a service in the cloud, through aggregation, integration or customization with another service in the cloud.
There are several use cases for the composition of hybrid clouds. For example, an organization can store confidential customer data in a private cloud application, but interconnect it with a business intelligence application provided in a public cloud as a software service. This hybrid cloud example extends the company's capabilities to offer a specific commercial service by adding externally available public cloud services. The adoption of the hybrid cloud depends on a number of factors, such as data security and compliance requirements, the level of control needed over the data and applications used by an organization.
Another example of a hybrid cloud is one in which IT organizations use public computing resources in the cloud to meet the temporary capacity needs that the private cloud can not satisfy. This capability allows hybrid clouds to use cloud burst to scale through clouds. Cloud bursting is an application deployment model in which an application runs in a private cloud or data center and "explodes" in a public cloud when the demand for computing capacity increases. One of the main advantages of the cloud burst and a hybrid cloud model is that an organization pays additional computing resources only when they are needed. Cloud bursting allows data centers to create an internal IT infrastructure that supports average workloads and use public or private cloud cloud resources during peaks in processing demands. [93] The specialized hybrid cloud model, which is built on a heterogeneous hardware, is called "Cross platform hybrid cloud". A multiplatform hybrid cloud is usually powered by different CPU architectures, for example, x86-64 and ARM, below. Users can transparently deploy and scale applications without knowing the diversity of cloud hardware. This type of cloud arises from the increase of the on-chip system based on ARM for server-class computing.
