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Private vs Public vs Hybrid Cloud in Cloud Computing
In this article, I am going to discuss Private vs Public vs Hybrid Cloud in Cloud Computing. Please read the following three articles before proceeding to this article. We discussed what these 3 (Private, Public, and Hybrid) clouds are, their benefits, and limitations and use cases in our previous 3 articles.
Private Cloud:
Cloud Hardware: In the case of private cloud, the entire cloud infrastructure such as the physical servers, storage, networking, etc, must be procured by the organization that owns the private cloud
Tenancy: Single-tenancy that is a private cloud is usually used by a single organization.
Data Center Location: In this case, the location of the Data Center is Inside the organization’s corporate network.
Scalability: The scalability is depending on the private cloud infrastructure. That means the Private cloud scalability is limited by the amount of infrastructure it has. Beyond a certain point, it is impossible to scale up, unless the organization procures additional hardware and set it up.
Cloud Maintenance: The organization is itself responsible for setting up as well as maintaining the private cloud.
Costs: It requires huge initial capital expenditure as the organization has to purchase all the cloud hardware, set it up, and maintain. To maintain a private cloud, the organization also needs to hire a workforce. So, there is a monthly operating expenditure as well.
Accessibility: Only the organization that owns the private cloud can access private cloud resources and services.
Public Cloud:
Cloud Hardware: In this case, the public cloud service providers like Amazon or Microsoft provide the infrastructure.
Tenancy: Multi-tenancy that is public cloud resources are going to be shared by multiple organizations.
Data Center Location: The location of the Data Center is anywhere on the Internet. For example, Public cloud providers such as AWS and Azure data centers are typically located in many countries across the entire world.
Scalability: This is the biggest advantage of Public Cloud. Near-unlimited scalability i.e. on-demand resources are available to meet your business needs. So, you will never run out of resources.
Cloud Maintenance: No maintenance as your service provider such as AWS, Azure, Google Cloud, etc will provide the maintenance. Organizations and even the general public can use public cloud services by paying a monthly fee.
Costs: No need to purchase hardware or software and you only need to pay only for the service you use. The more public cloud services you use, the more you have to pay. Sometimes, the overall price tag that you need to pay might be higher than what you expected, especially if you use a lot of public cloud services for a long period of time.
High reliability: A vast network of servers ensures against failure.
Accessibility: A public cloud is exposed to the public. So, anyone can access its resources and services anytime and from anywhere with an internet-connected device.
Hybrid Cloud:
Cloud Hardware: It is the combination of both Private and Public cloud. For the private cloud, your organization responsible for providing and setting up the infrastructure whereas the public cloud service providers such as Amazon Web Services, Microsoft Azure, Google Cloud, etc. provides the infrastructure for the public cloud.
Tenancy: The private part of the hybrid cloud is only used by a single organization whereas the public part of the hybrid cloud is shared by multiple organizations.
Data Center Location: The private cloud data center is typically inside the organization’s corporate network whereas the public cloud data center anywhere on the internet.
Scalability: The scalability of the private cloud services and resources is limited by the underlying available infrastructure, whereas with the public cloud services we do not have such a limitation.
Cloud Maintenance: The private cloud is managed by the organization that owns it whereas the public cloud is managed by the cloud service provider.
Costs: With the private cloud, the organization is faced with both, the initial capital expenditure as well as monthly operating expenses to maintain it. With the public cloud, you only have to pay a monthly fee for the services and resources you use.
Accessibility: Private cloud services can be accessed only by the organization that owns it whereas the public cloud services can be accessed by anyone.
In the next article, I am going to discuss Infrastructure as a Service also called IaaS in detail. Here, in this article, I try to explain the Private vs Public vs Hybrid Cloud in Cloud Computing. I hope now you understand the need and use of Private vs Public vs Hybrid Cloud in Cloud Computing.
