Difference Between Public Cloud and Private Cloud
Key Differences: Public Vs. Private Cloud
- In a public cloud, computing infrastructure and resources are shared with multiple companies. In a Private cloud, the cloud infrastructure is deployed for a single organization.
- Reliability of the Public cloud is moderate, whereas Private infrastructure offers a high level of reliability, security, and data confidentiality.
- Public Cloud is managed by Cloud Service Provider’s technical team on the contrary, Private Cloud is managed by in-house technical administrators.
- The public cloud can be accessed via the internet, while the Private Cloud is usually accessed over a VPN.
What is Public Cloud?
A public cloud is a cloud computing deployment model in which resources, such as servers and storage, are owned and operated by third parties and delivered via the internet. The model enables organizations of all sizes to implement various solutions and computing resources to meet their growing needs.
What is a Private Cloud?
Private clouds are cloud investments that are deployed for a single organization. It comprises cloud computing resources used exclusively by one company or organization. Private cloud can be deployed at your company’s on-site data center. Large private corporations mostly use it, which needs to be refreshed periodically. However, this miscalculation may lead to hazards.
Public Cloud Vs. Private Cloud
Here are important differences between Public and Private Clouds:
Although both public and private cloud provides hosting solutions, the way they operate differs when it comes to security, performance, and control.
Parameters | Public Cloud | Private Cloud |
---|---|---|
Definition | A public cloud is a computing environment in which computing infrastructure and resources are shared with the public over the Internet. | A private cloud is a computing infrastructure and resource-sharing network that is connected via the Internet to a private network. |
Work on | Public cloud functions on the principle of storage demand scalability. | Private cloud can only be shared among users of an organization. |
Control over Infrastructure | Public cloud deployment control over infrastructure is limited. | Private cloud environment provides complete control. |
Connection | It is connected to the public Internet. | It only provides connectivity over the private network. |
Hosted | It is hosted at the Service Provider site. | It is hosted at the Service Provider site or enterprise. |
Business requirement | It is an affordable solution that provides room for growth. | High performance, security, customization, and control options. |
Best use | It is widely used to provide web-based email, online storage, application testing, and development environments. | Uses widely in the application to protect your most sensitive data and applications |
Scalability | It is managed by Cloud Service Provider’s technical team. | It is managed by In-house technical administrators. |
Managed by | A public cloud is a multi-tenant in which your service provider manages the network. | A private cloud is like a single tenant in which the in-house team handles the network. |
Cost | It is an affordable option offering a pay-as-you-go service fee. | It requires large upfront costs for implementing the hardware, software, staff, and other resources. |
Billing method | Users have to pay a monthly bill for public cloud services. | In the Public cloud, money is charged based on usage GB and bandwidth transfer fees. |
Reliability | Reliability is moderate here. | Private infrastructure offers a high level of reliability. |
Demand for in-house software | Not needed in this cloud computing model. | Very high in-house software requirement |
Security | Only offers essential security compliance. | Enhanced security to meet data protection legislation. |
Performance | In the public cloud, the performance is low to medium. | The performance is high in a private cloud. |
Servers | It covers the shared servers. | It covers the devoted servers. |
Example | A public cloud is comparable to renting a truck from a large company that is available to everyone. | The concept of a private cloud can be compared to owning and managing a fleet of trucks. |
Providers | Amazon web service (AWS) and Google AppEngine, etc. | Microsoft KVM, HP, Red Hat & VMWare, etc. |
Advantages |
|
|
Disadvantages |
|
|
Read more about: Types of Cloud Computing
Which is better, public or Private cloud?
The final selection between public or private cloud solutions depends on various factors, use cases, and limitations.
Generally, organizations that require a high level of performance, security, and control should opt for a private cloud deployment model, whereas those who are perhaps smaller companies with a limited budget should consider a public cloud.