This article will cover one of the most talked about concept and the perhaps one of the most revolutionizing one of the present generation, which is Cloud Computing and will specifically focus on the different types of clouds namely, private, public and hybrid. Article gives an overview of cloud computing and explore what are private, public and hybrid cloud.
The most commonly used analogy used to understand cloud computing is that of an electricity grid system. As in the case of electricity, the user does not know about the physical location of the electricity generators or the mode by which it is generated, Cloud Computing offers the same services to the end user. In the case of Cloud Computing, users can outsource few or all of their computing needs including but not limited to processing, storage, software and data access to the cloud service providers and pay only for those services and only to the extent to which they are used. Cloud computing providers deliver applications via the internet, which are accessed from web browsers of desktop and mobile apps, while the actual software and data are stored on servers at a remote location.
Visual Representation of Cloud Computing
Importance of the types of Cloud Computing:
Cloud computing mainly supports infrastructure convergence and shared services. This type of data center environment allows enterprises to get their applications ready and configurable faster. Also their efficiency and performance increases. Coupled with easier manageability and less maintenance it is a win-win situation for everyone. The major concern with individuals and organizations being reluctant to use the cloud service is the privacy issue and they find it difficult to trust third party vendors with their important data. That is why the types of Cloud computing becomes important which will be discussed in the next section.
Types of Cloud Computing:
- Private: Private cloud (also called internal cloud or corporate cloud) is a computing architecture that provides hosted services to a limited number of people behind a security validation. For this higher security, most private computing is hosted from within the organizations. Hence, the organizations themselves have to “buy, build, and manage them" and thereby is not accepted by many as an actual cloud computing and subsequently do not even reap benefits from the major advantages of Cloud Computing.
- Public: A public cloud is actually the known version of Cloud and is based on the original cloud computing model. Here the service provider manages the resources including the applications and data storage and makes it available to the general public over the Internet. Generally the Public cloud service providers operate on a pay-per-usage model but some also provide free services till a certain limit to attract more users.
- Hybrid: Hybrid cloud as the name suggests is a composition of two or more clouds generally private and public. The individual cloud models remain independent entities but function together, thereby, offering the benefits of multiple deployment models. It sometimes is used in the reference of a platform where multiple cloud systems are connected and which offers the flexibility to move programs and data easily from one deployment system to another.
Different types of Cloud Computing:
The following table gives a comparison between the two major types of cloud computing.
- ✓- Implies the presence of a trait
- ✓✓ – Implies strong presence of a trait
- ? – Implies compromised aspect of the feature
Exhibit : Comparison Table
Whatever be the model of deployment used, Cloud computing in itself is a trend which will make the processes easier, reliable, faster and cheaper. All major stake-holders eye cloud computing either as service providers or as customers to integrate cloud with their operations in order to get the best from the potential market in either case.
Cloud computing with its varied types will impact each and every segment of the market directly or indirectly and though it all seems perfect at the moment, the inherent flaws and issues will surface only once the concept becomes abundantly used. For the moment, it is advised to use the technology to the fullest and enjoy the benefits.