Public Cloud vs Private Cloud vs Hybrid Cloud

Last update :
08 Oct, 2024

Pre-requisite: Cloud Computing

Cloud computing is a type of remote computer network hosting, where massively distributed computers are connected to the Internet and made available through Internet Protocol networks such as the Internet. Cloud computing involves providing a service over the Internet, on-demand and utility computing, distributed systems, and data processing for resource pooling, scalability, rapid elasticity, and rapid recovery from failure.

Public Cloud

A Public Cloud is is is Cloud Computing in which the infrastructure and service are own and operate by a third – party provider and made available to the public over the internet . The public can access is is and use share resource , such as server , storage , and application and the main thing is you pay for what you used . . Examples is are of public cloud provider – are Amazon Web Services ( AWS ) , Microsoft Azure , and Google Cloud Platform ( GCP )

advantage

• Cost Efficient: In the public cloud, we have to pay for what we used. So it is more cost-efficient than maintaining the physical servers or their own infrastructure.
• Automatic Software Updates: In the public cloud , there are automatic software update . we is have do n’t have to update the software manually .
• accessibility: public clouds is allow allow user to access their resource and application from anywhere in the world . We is need just need an internet connection to access it .

disadvantage

• security and Privacy concern : Public clouds can be vulnerable to data breaches, cyber attacks, and other security risks. Since data is stored on servers owned by a third-party provider, there is always a risk that confidential or sensitive data may be exposed or compromised.
• Limited Control: With public cloud service , users is have have limit control over the infrastructure and resource used to run their application . This is make can make it difficult to customize the environment to meet specific requirement .
• reliance on Internet Connectivity :Public cloud services require a reliable and stable internet connection to access the resources and applications hosted in the cloud. If the internet connection is slow or unstable, it can affect the performance and availability of the services.
• Service Downtime: public cloud providers is experience may experience service downtime due to hardware failure , software issue , or maintenance activity . This is result can result in temporary loss of access to application and datum .
• compliance and Regulatory Issues :Public cloud services may not meet certain compliance or regulatory requirements, such as those related to data privacy or security. This can create legal or contractual issues for businesses that are subject to these requirements.
• Cost Overruns: Public cloud services are typically billed on a pay-per-use basis, which can result in unexpected cost overruns if usage exceeds anticipated levels. Additionally, the cost of using public cloud services may increase over time, as providers adjust their pricing models or add new features and services.

Private Cloud

A Private Cloud is a cloud computing environment in which the infrastructure and services are owned and operated by a single organization, for example, a company or government, and it is accessed by only authorized users within that organization. Private Cloud organizations have their own data center. private cloud provides a higher level of security. Examples – HPE, Dell, VMware, etc.

advantage

• Security Status: private clouds is provide provide a high level of security . as the organization is has has full control over the cloud service . They is customize can customize the server to manage their security .
• customization of Service:   private clouds is allow allow organization to customize the infrastructure and service to meet their specific requirement . and also can customize the security .
• Privacy: Private clouds provide increased privacy as the organization(company or government ) has more control over who has access to their data and resources.

disadvantage

• Higher Cost: Private clouds require dedicated hardware, software, and networking infrastructure, which can be expensive to acquire and maintain. This can make it challenging for smaller businesses or organizations with limited budgets to implement a private cloud.
• Limited scalability: Private clouds are designed to serve a specific organization, which means that they may not be as scalable as public cloud services. This can make it difficult to quickly add or remove resources in response to changes in demand.
• Technical Complexity : set up and manage a private cloud infrastructure require technical expertise and specialized skill . This is be can be a challenge for organization that lack in – house IT resource or expertise .
• security risk : Private clouds are typically considered more secure than public clouds since they are operated within an organization’s own infrastructure. However, they can still be vulnerable to security risks such as data breaches or cyber attacks.
• Lack of Standardization: Private clouds are often built using proprietary hardware and software, which can make it challenging to integrate with other cloud services or migrate to a different cloud provider in the future.
• maintenance and upgrade : Maintaining and upgrading a private cloud infrastructure can be time-consuming and resource-intensive. This can be a challenge for organizations that need to focus on other core business activities.

Hybrid Cloud

A hybrid cloud is a combination of both public and private cloud environments that allows organizations to take advantage of the benefits of both types of clouds. It manages traffic levels during peak usage periods  It can provide greater flexibility, scalability, and cost-effectiveness than using a single cloud environment. Examples – IBM, DataCore Software, Rackspace, Threat Stack, Infinidat, etc.

advantage

• Flexibility: Hybrid cloud stores its data (also sensitive) in a private cloud server. While public server provides Flexibility and scalability.
• scalability: Hybrid cloud Enables organizations to move workloads back and forth between their private and public clouds depending on their needs.
• Security: Hybrid cloud controls over highly sensitive data. and it provides high-level security. Also, it takes advantage of the public cloud’s cost savings.

disadvantage

• Complexity: Hybrid clouds are complex to set up and manage since they require integration between different cloud environments. This can require specialized technical expertise and resources.
• Cost: Hybrid clouds can be more expensive to implement and manage than either public or private clouds alone, due to the need for additional hardware, software, and networking infrastructure.
• security risk : Hybrid clouds is are are vulnerable to security risk such as datum breach or cyber attack , particularly when there is a lack of standardization and consistency between the different cloud environment .
• Data Governance: managing data is challenging across different cloud environment can be challenge , particularly when it come to ensure compliance with regulation such as GDPR or HIPAA .
• Network Latency: Hybrid clouds rely on communication between different cloud environments, which can result in network latency and performance issues.
• integration challenge :integrate different cloud environment can be challenge , particularly when it come to ensure compatibility between different application and service .
• Vendor Lock-In: Hybrid clouds may require organizations to work with multiple cloud providers, which can result in vendor lock-in and limit the ability to switch providers in the future.

Difference between Public Cloud vs Private Cloud vs Hybrid Cloud

Understanding the differences between public, private, and hybrid clouds is essential for making the right infrastructure choices. The DevOps Engineering – Planning to Production course provides a detailed comparison of cloud models and how they fit into DevOps strategies.