Types of Cloud

There are the following 4 types of cloud that you can deploy according to the organization's needs-

Public Cloud

Public cloud is open to all to store and access information via the Internet using the pay-per-usage method.

In public cloud, computing resources are managed and operated by the Cloud Service Provider (CSP).

Example: Amazon elastic compute cloud (EC2), IBM SmartCloud Enterprise, Microsoft, Google App Engine, Windows Azure Services Platform.

Advantages of Public Cloud

There are the following advantages of Public Cloud -

Disadvantages of Public Cloud

Private Cloud

Private cloud is also known as an internal cloud or corporate cloud. It is used by organizations to build and manage their own data centers internally or by the third party. It can be deployed using Opensource tools such as Openstack and Eucalyptus.

Based on the location and management, National Institute of Standards and Technology (NIST) divide private cloud into the following two parts-

Advantages of Private Cloud

There are the following advantages of the Private Cloud -

Disadvantages of Private Cloud

Hybrid Cloud

Hybrid Cloud is a combination of the public cloud and the private cloud. we can say:

Hybrid Cloud = Public Cloud + Private Cloud

Hybrid cloud is partially secure because the services which are running on the public cloud can be accessed by anyone, while the services which are running on a private cloud can be accessed only by the organization's users.

Example: Google Application Suite (Gmail, Google Apps, and Google Drive), Office 365 (MS Office on the Web and One Drive), Amazon Web Services.

 

Advantages of Hybrid Cloud

There are the following advantages of Hybrid Cloud -

Disadvantages of Hybrid Cloud

Community Cloud

Community cloud allows systems and services to be accessible by a group of several organizations to share the information between the organization and a specific community. It is owned, managed, and operated by one or more organizations in the community, a third party, or a combination of them.

Example: Health Care community cloud

 

Advantages of Community Cloud

There are the following advantages of Community Cloud -

Disadvantages of Community Cloud

Difference between public cloud, private cloud, hybrid cloud, and community cloud -

The below table shows the difference between public cloud, private cloud, hybrid cloud, and community cloud.

Parameter

Public Cloud

Private Cloud

Hybrid Cloud

Community Cloud

Host

Service provider

Enterprise (Third party)

Enterprise (Third party)

Community (Third party)

Users

General public

Selected users

Selected users

Community members

Access

Internet

Internet, VPN

Internet, VPN

Internet, VPN

Owner

Service provider

Enterprise

Enterprise

Community