Week 4 - Types of Cloud Deployment Models

There are four common types of cloud deployment models: Private, Public, Hybrid, and Community. When a business sets out to implement cloud computing, they will need to determine which deployment model best meets their needs. The deployment model is basically the location of the cloud.

Private cloud deployment is an internal cloud. The business owns and manages the infrastructure for the cloud. The cloud is accessed thru a private network and only for the use of the company - it isn't shared. The main reason companies keep a private cloud is for security. This cloud is behind their firewall. Organizations that have to comply with regulatory standards that regulate privacy and audits will use a private cloud.

Public cloud deployment is owned and hosted by a cloud provider at their location. Services and infrastructure are provided to a business. This deployment works well with companies that have spikes in their usage during peak times of the business. The cloud provider is able to increase and decrease the size of the infrastructure based on the needs of the business.

Hybrid cloud deployment is a combination of private and public cloud deployment. Businesses will keep secured applications and data on a private cloud. They will have the shared application on the public cloud. This still gives them cost benefits. This also allows for cloud bursting. Cloud bursting allows a private cloud to burst into the public cloud when load spikes need the extra capacity.

Community cloud deployment is a setup where businesses with the same setup is needed, shares the cloud with other businesses. If a business is working on a joint venture with another company, they may setup a cloud to share the information.

This chart from CloudTweaks (2012) shows the size of businesses and what cloud deployment they tend to use.

http://cloudtweaks.com/2012/07/4-primary-cloud-deployment-models/