Public, Private, Hybrid, and Community: more on cloud deployment models
Referencing from the previous post on Ever Thought of how the cloud works, we have seen what is cloud and cloud computing and what it offers. Now we will be watching the types of cloud that we can use and deploy for our applications according to our needs.
Public Cloud
The public cloud is defined as computing services offered by third-party providers over the public Internet, making them available to anyone who wants to use or purchase them. They may be free or sold on-demand, allowing customers to pay only per usage for the CPU cycles, storage, or bandwidth they consume.
Advantages of public clouds:
Lower costs - no need to purchase hardware or software and you pay only for the service you use.
No maintenance - your service provider provides the maintenance.
Near-unlimited scalability - on-demand resources are available to meet your business needs.
High reliability - a vast network of servers ensures against failure.
Private Cloud
The private cloud is defined as computing services offered either over the Internet or a private internal network and only to select users instead of the general public. Also called an internal or corporate cloud, private cloud computing gives businesses many of the benefits of a public cloud - including self-service, scalability, and elasticity - with the additional control and customization available from dedicated resources over a computing infrastructure hosted on-premises. In addition, private clouds deliver a higher level of security and privacy through both company firewalls and internal hosting to ensure operations and sensitive data are not accessible to third-party providers. One drawback is that the company’s IT department is held responsible for the cost and accountability of managing the private cloud. So private clouds require the same staffing, management, and maintenance expenses as traditional data center ownership.
Advantages of a private cloud:
More flexibility - your organization can customize its cloud environment to meet specific business needs.
More control - resources are not shared with others, so higher levels of control and privacy are possible.
More scalability - private clouds often offer more scalability compared to on-premises infrastructure.
Hybrid Cloud
Hybrid Cloud is a combination of the public cloud and the private cloud. we can say:
Hybrid Cloud = Public Cloud + Private Cloud
A 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.
Advantages of the hybrid cloud:
Control - your organization can maintain a private infrastructure for sensitive assets or workloads that require low latency.
Flexibility - you can take advantage of additional resources in the public cloud when you need them.
Cost-effectiveness - with the ability to scale to the public cloud, you pay for extra computing power only when needed.
Ease - transitioning to the cloud does not have to be overwhelming because you can migrate gradually phasing in workloads over time.
Community Cloud
A community cloud in computing is a collaborative effort in which infrastructure is shared between several organizations from a specific community with common concerns (security, compliance, jurisdiction, etc.), whether managed internally or by a third party and hosted internally or externally. This is controlled and used by a group of organizations that have shared interests. The costs are spread over fewer users than a public cloud (but more than a private cloud), so only some of the cost savings potential of cloud computing are realized.
Advantages of the community cloud:
Cost Effective - Community cloud offers the same advantages as that private cloud at a low cost.
Sharing Among Organizations - Community cloud provides an infrastructure to share cloud resources and capabilities among several organizations.
Security - The community cloud is comparatively more secure than the public cloud but less secure than the private cloud.
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