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Sabtu, 03 Desember 2016

What is a Hybrid Cloud?

What is a Hybrid Cloud? - A hybrid cloud is a combination of different clouds, be it private, public or a mix. Cloud service utilising both private and public clouds to perform distinct functions within the same organisation. 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. Therefore, an organisation can maximise 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.

The precision of this definition is quite important: The public and private clouds in a hybrid cloud arrangement are distinct and independent elements. This allows organizations to store protected or privileged data on a private cloud, while retaining the ability to leverage computational resources from the public cloud to run applications that rely on this data. This keeps data exposure to a bare minimum because they're not storing sensitive data long-term on the public cloud component.
 
The idea behind hybrid cloud is that businesses can use it to take advantage of the scalability and cost-effectiveness offered by the public cloud computing environment without exposing mission-critical applications and data to the vulnerabilities associated with the public cloud option. In addition, the hybrid cloud model creates what is often the best and most efficient solution because different types of data can be moved onto whatever platform provides the most efficient and secure environment.

Hybrid clouds mainly work on an infrastructure and application level. On the infrastructure layer, a hybrid cloud means the combination of virtual machines from different cloud services. On the application or software as a service (SaaS) layer, a hybrid cloud describes an application setup with components in different SaaS offerings or existing applications within the data center of an enterprise. The challenge on an SaaS-based hybrid cloud is mainly the exchange of data between the different services and applications. Like orchestration works on the infrastructure level, data integrators work on the application layer.
A hybrid cloud is typically created in one of two ways: either a vendor with an existing private cloud solution forms a partnership with a public cloud provider, or a public cloud provider forms a partnership with a vendor that provides private cloud platforms.

One clear benefit of a hybrid cloud model is having on-premises, private infrastructure that's directly accessible in other words, not being pushed through the public internet. This greatly reduces access time and latency in comparison to public cloud services. With the looming risk of the consolidation of ISPs at the consumer/business level in the United States, the current halting of Net Neutrality, and the volleying of threats between ISPs and service providers, reliance on the proper functioning of the internet  a single point of failure that can bring down the normal operations of an entire company  is an unacceptably high risk.

Another benefit of a hybrid cloud model is the ability to have on-premises computational infrastructure that can support the average workload for your business, while retaining the ability to leverage the public cloud for failover circumstances in which the workload exceeds the computational power of the private cloud component. With the hybrid cloud model, IT decision makers have more control over both the private and public components than using a prepackaged public cloud platform.

This provides the added benefit of paying for the extra compute time only when these resources are needed. Accordingly, for businesses that have milestones throughout the year where a much higher than normal amount of compute time is needed (tax season, perhaps), extending to the public cloud is a cheaper proposition than building out a private infrastructure that sits idle for most of the year.

Building out the private end of a hybrid cloud also allows for flexibility in server designs. This gives companies the flexibility to provision rapid and archival storage at a likely lower cost. Combined with the announcement of new 19nm server-grade SSDs, and the Helium-filled 6TB drives from HGST, data storage "fast or slow" can be achieved without the use of backup tapes.

Hybrid cloud adoption can be an effective strategy for a wide variety of businesses that have a tighter focus on security or unique physical presence demands. Although there is greatly minimized risk in a hybrid cloud model, allowing access from a public cloud has the remote potential of being insecure, or being the conduit through which data can be harvested. This, however, is true of almost any public network communication.

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