Cloud Deployment Models
There’s a lot of chatter about the cloud nowadays and most of it’s confusing. If you are looking to take your business to the cloud, it will be important to know which of the cloud models you would like to deploy as part of your planning process. With the very broadest of strokes, I am going to outline four cloud deployment models. Four primary cloud deployment models include private, public, community, and hybrid.
The private cloud deployment model consists of a cloud that is going to be used solely by one organization. The private cloud infrastructure can be created and maintained by the company using it or by a third-party. The private cloud can be on-site or at a remote location. This option is the most costly but offers better security than the other models.
The community cloud deployment model would consist of a cloud made for use only by several organizations with the same objective. Similar to the private cloud, it can be setup and maintained by one or several of the businesses in the community or by a third-party supplier. It may be onsite or at a remote location. The participants in the community utilizing the cloud will split the cost. With this model, you’re going to see slightly elevated security risks over private.
The public cloud model is a cloud that is open for public use on public networks. It may be owned and managed by anyone, accessed by the internet, and stored on premises of the cloud service provider. This model likely offers the best saving in both capital and operating costs. The public cloud model is the model that best fits the definition of true cloud hosting. However, it is the least secure of all of the cloud models outlined here.
The hybrid cloud model is one that consists of two or more of the above clouds are connected. The clouds will remain separate entities but can share functions. Hybrid is a good method for handling usage spikes for private clouds. If one reaches capacity, overflow data can be processed by the other. The security of this option is going to depend on the mixture of cloud models used in deployment. The hybrid cloud model is often touted as the best approach.