Know the Difference Between Public, Private and Hybrid Cloud

By ridhigrg |Email | Feb 26, 2019 | 15735 Views

In order to understand what hybrid cloud is it's first important to understand the underlying components that make up the cloud in a standard traditional IT model. The enterprise manages and controls the network connections to the private or public internet. The storage layer, hardware virtualization layer, operating system middleware, runtime data and the application itself if a company is using infrastructure as a service they're only managing the operating system level up to the application.

The public cloud provider provides choices in terms of an operating system that the enterprise gets to choose Linux or Windows, etc in a platform as service, the enterprise only manages the data and the application layer. The platform as a service provider provides everything else. Software as a service provides the whole bundle completely as a service. 
In this article, we will be focusing on infrastructure as a service provided as a public or private cloud. So the next question is whats the difference between a private or a public cloud.

A public cloud provider makes resources available to the public for a fee. Anybody can leverage the resources for their own use, it is unrestricted. The top two infrastructure as a service provider in the market today is Amazon AWS and Rackspace. Both of whom provide the capabilities which are outlined in the video and even local players in particular markets. But these two dominate the global market by far the public cloud is connected to the public Internet for anyone to leverage in a private cloud environment. The same capabilities are controlled by the enterprise in their own hosted environment for their own use. Only these environments can be connected to end-users over a private line or through the public Internet.

So what are the benefits of each public clouds it tends to be cheaper because they're using shared infrastructure and a more suited for applications whose information is not private proprietary or sensitive private clouds? On the other hand, they are more expensive but offer a
A tradeoff of higher levels of security and could potentially hit higher SLA metrics. The tradeoff is strictly a business decision by the cloud buyer but in general, most companies use public cloud today for tests or development applications email and CRM.
However, market research shows that companies are more and more using the public cloud for other business processes such as HR and accounting. In terms of the private cloud environments market mission-critical highly sensitive applications are heavy. Did the analysis and big data applications are examples of applications that typically run in a private cloud. Environments private clouds are also an interim step that larger enterprises choose to adopt first to give their employees a public like a cloud experience in a very controlled environment.

Market research studies show that over the next five years hybrid cloud adoption will reach 43% of all companies who are adopting the cloud up from 27% in 2013. This is a significant trend to follow over the next several years so now what is a hybrid cloud and why is it so valuable? Hybrid cloud provides the best of both worlds. Typical hybrid architecture start with traffic on the private cloud environments and then burst into the public cloud environment when the load is either heavy or usage is high from flash crowds. Most companies use the public cloud for extra on-demand capacity and have coined the term cloud bursting to describe that capability. 
This is a common practice when leveraging an application that runs on both the private and the public cloud environment. Additionally, companies with hybrid cloud architectures can also be leveraging private cloud uniquely for some applications. Public cloud for others this has to do with the cost and security tradeoff. The idea is to give their application owners choice when it comes to leveraging the cloud enterprises describe this type of setup as a hybrid cloud because they are leveraging both types of infrastructures to support different types of use cases. 

So where does Akamai fit into all this, of course, Akamai can more reliably deliver and accelerate any data through the internet whether its services from a private or a public cloud environment at the same time? Akamai can offload the infrastructure enough to a degree that dramatically reduces the likelihood or even possibly eliminates the need to cloud burst into a public cloud environment. This can be a great benefit to an enterprise and reduce their overhead and complexity when managing a hybrid cloud environment.

In addition, our availability and security capabilities can provide a reliable offering that is optimized for any end user no matter what kind of device or where they are requesting the content from. In summary, the hybrid cloud will become a very common architecture in the next few years and important to watch as it develops to understand the use cases and providers of these services of course. End-user expectations are on the quality of service security and availability will not change no matter what environment the applications are run out of and Akamai can provide a holistic solution to meet both end users and enterprise needs when using these environments. 

Source: HOB