Cloud Deployment Model | Public Cloud | Private Cloud | Community Cloud | Hybrid Cloud

Cloud Deployment Models Explained

Overview of Cloud Working Model

• The video outlines the discussion on cloud deployment models, starting with an overview of the working model of cloud computing.

• Two primary types of cloud working models are introduced: cloud service model and cloud deployment model. Previous discussions covered the service model in detail.

Public Cloud

• The public cloud is defined as computing services offered by third-party providers over the internet, accessible to anyone who wishes to use or purchase them.

• Examples of public cloud providers include Amazon EC2, Microsoft Azure, Google App Engine, and IBM. These services can be free or paid based on usage.

• Users can scale resources according to their needs; they can opt for more or fewer services depending on demand.

Advantages of Public Cloud

• Low Cost: No need for hardware/software purchases; users pay only for what they use.

• No Maintenance Responsibility: The provider handles maintenance of hardware, software, and network systems.

• High Scalability: Users can easily adjust their resource consumption based on current requirements.

Disadvantages of Public Cloud

• Less Customizable: Limited ability to modify services according to specific user needs.

• Less Secure: Being publicly accessible means lower security compared to private options.

Private Cloud

• The private cloud is exclusively owned by a single organization (also known as corporate or internal cloud), restricting access to authorized users only.

Characteristics of Private Cloud

• It allows accessibility within a specific organization boundary, enhancing data control and security for sensitive information.

Advantages of Private Cloud

• Highly Secured: Only authorized personnel have access, ensuring better data protection than public clouds.

• More Control Over Resources: Organizations maintain greater control over their hardware and software resources compared to public clouds.

Disadvantages of Private Cloud

Overview of Cloud Computing Models

Private Cloud

• The private cloud offers high security, greater control, and improved performance but is generally more expensive than public clouds.

• Access to a private cloud is restricted to within the organization, limiting operational areas.

• Skilled personnel are required for managing and operating private cloud services.

Community Cloud

• The community cloud resembles a private cloud but serves multiple organizations with similar backgrounds sharing infrastructure and resources.

• Ideal for joint business ventures or research organizations, allowing collaboration while maintaining some level of exclusivity.

Advantages of Community Cloud

• Cost-effective as costs are shared among several organizations using the same infrastructure.

• Flexible and scalable; users can modify documents according to their needs.

• More secure than public clouds but less secure than private clouds due to shared resources.

Disadvantages of Community Cloud

• More expensive than public clouds, making it unsuitable for every organization.

• Fixed data storage and bandwidth limits are divided among all community members.

Hybrid Cloud

• A hybrid cloud combines two or more types of clouds (private, public, or community), leveraging the benefits of each model.

Benefits of Hybrid Cloud

• Non-critical tasks like development can utilize public clouds while sensitive operations remain on private clouds.