What are public, private and hybrid clouds?

Public, Private and Hybrid clouds:

Public Cloud:

Public clouds are the most common type of cloud computing deployment.

The cloud resources (like servers and storage) are owned and operated by a third-party cloud service provider.

Computing in which service provider makes all resources public over the internet. It is connected to the public Internet.

In a public cloud, you share the same hardware, storage and network devices with other organisations.

Advantages:

Low cost
No maintenance
Scalability
Low Failure rate

Disadvantages:

Data security and privacy
Loss of control
Lack of options
Lack of customization

Private Cloud:

A private cloud consists of cloud computing resources used exclusively by one business or organisation.

Physically located at your organisation’s on-site datacenter or it can be hosted by a third-party service provider.

Ability to provide dedicated resources.

Advantages:

High security
High performance
Easy customization
Compliance
Better Control

Disadvantages:

Costs are substantial in the case of building an on-premise private cloud.
The running cost would include personnel cost and periodic hardware upgrade costs.
Under utilization cost
Capacity ceiling

Hybrid Cloud:

Hybrid cloud combines on-premises infrastructure a private cloud with a public cloud.

Hybrid clouds allow data and apps to move between the two environments.

Advantages:

greater flexibility
more deployment options
scale up
you can migrate gradually

Disadvantages:

difficult to implement
difficult to maintain
security breaches to systems
complicated operations for organizations

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