Cloud Computing Deployment Models


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Cloud Computing Deployment Models

By 2020 cloud computing will be the most preferred choice for software development according to expert's prediction. Cloud Computing is rapidly gaining popularity. In place of local servers, organizations are shifting to using pools of managed computer systems available over the internet.

Cloud computing has different deployment models such as private cloud, community cloud, public cloud, and hybrid cloud. This article briefly reviews the four most common deployment models.

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"Public Cloud shares infrastructure and resources among the general public"

Public Cloud

Public Cloud shares infrastructure and resources among the general public. The data is stored and managed by a third party. The users do not need to buy or maintain their own servers and the cloud owners provide these services at a fee or free to users.

The costs are spread over a wide range of users, each has the option to scale when the need arises. Some of the companies offering this include Oracle, Amazon, Microsoft, and Google.

Private Cloud

From a technical point of view, there is no major difference between private cloud and public cloud because they are designed the same. Private Cloud utilizes infrastructure and resources which are not used by any other organization, hence not shared. It is also known as the internal or corporate cloud.

This cloud option comes with enhanced security since the data center hardware resides in a firewall. This can be hosted on a third party company or within the company premises. The company could manage the infrastructure itself or it can be managed by a third party even if one company runs it privately. Many organizations are considering using a closed private cloud to minimize data exposure.

The major shortcoming is the cost since the hardware and software are expensive. Due to the cost of delivery small and medium-sized companies do not select this model.

Tech Trends

"By 2020 cloud computing will be the most preferred choice"

Tech Trends

"Community cloud shares infrastructure and resources among several organizations"

Community Cloud

Community cloud shares infrastructure and resources among several organizations. These generally have common concerns such as security, compliance and jurisdiction. It could be managed internally or by a third-party and either hosted internally or externally.

The costs are spread over fewer users than a public cloud although more than a private cloud. Therefore, only some of the cost savings potential of cloud computing are realized.

This model is currently not widespread. Some of the companies offering this include Microsoft, Google, IBM and Red Hat.

Hybrid Cloud

Hybrid cloud comprises of the highest quality features of community cloud, public cloud and private cloud deployment models.

It enables organizations to use and mix the features of all types of deployment models that suit their needs. A company can host its very sensitive data on a private cloud with high security and the less sensitive data to the public cloud. By doing so it safeguards and controls its important resources cost-effectively. There are application and data portability.

The benefits of a hybrid model are data privacy, higher security, flexibility and affordable price for a specific purpose. It benefits organizations to allocate resources to review their data and categorize them into sensitive and non-sensitive.

It is recommended that organizations work with strategic partners to determine which model aligns to the business requirement and technology study.

Tech Trends

"By 2020 cloud computing will be the most preferred choice"

Waithera(Angela) Murache

IT Manager - Finance & Accounting Systems .Oracle Financials on Premise & Cloud, Six Sigma, SOTP(Sox),SMC(Scrum),CMS.