What Is Cloud Computing? Yes, Another Perspective – Part 2:
CLOUD COMPUTING MODELS
Cloud computing has several deployment models that are adopted according to need and requirement. Each configuration is implemented according to specific circumstances and necessities. In the following paragraphs, these techniques will be discussed one by one while outlaying their general purpose and structure.
Public cloud is a model which explicitly defines cloud computing in its most traditional and grass-root essence. The utilities are provided by a vendor or any third party service provider. The equipment required for providing these services are installed by the vendor. They are also responsible for server management and troubleshooting of the network. The internet serves as a backbone via which these applications are made accessible to the prospective users. Anyone who wishes to access these services can connect to the internet and use the desired application. This eliminates the need of any added hardware or software upgrades in the user’s machine as these costs are covered by the service provider. Public cloud services can either be free or sometimes offered in a pay per usage scheme. This is an efficient way in which the resources are used since the user only pays for the applications or services he avails.
Organizations that have a common interest or public sector corporations who wish to share data and information generally reap the benefits of Community Cloud Computing. The management of the cloud is either done by the organizations or sometimes handed over to a third party service provider. In the latter case, all troubleshooting is done off-premises while the vendor charges the said organizations for providing their services. Usually, these costs are split equally between the concerned parties as both sides avail a common, shared resource. It is also important to mention here that a significantly less amount of selective users can access services in a Community Cloud.
Private Cloud, as the name suggests is an internal cloud which is specifically designed for a corporation or an organization keeping in mind their demands and requirements. Only the users present in the organization are facilitated to use these services. The management of a Private Cloud can be done in-house (by the organization) or an external service provider is hired to design and manage the network. Usually, a firewall is also implemented in this cloud computing architecture to provide security and prevent any external interference. In short, a Private Cloud empowers an organization since it allows control over the data flow and service distribution.
The amalgamation of various cloud computing techniques to provide a wide array of services is known as a Hybrid Cloud. The entities involved in a hybrid cloud serve as separate units but the applications and services that it offers are accessible throughout the network. Data flow and program usage is made possible in this multiple cloud system as all the clouds are bounded to each other and use a standard protocol which is supported throughout the architecture. This averts and inhibits any compatibility issues that may be faced in a multiple cloud environment.
By Chuck Weaver
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