Cloud Types – Beginners Introduction

Cloud_types

In an earlier post, we introduced the various cloud services. Let us now see the various Cloud Types. The various cloud services are deployed on the cloud type that we choose.

Not all clouds are the same and not one type of cloud computing is right for everyone. Several different models, types, and services have evolved to help offer the right solution for your needs.

First, you need to determine the type of cloud deployment, or cloud computing architecture, that your cloud services will be implemented on. There are three different ways to deploy cloud services: on a public cloud, private cloud, or hybrid cloud.

Public Cloud Types

Public clouds are owned and operated by a third-party cloud service providers, which deliver their computing resources like servers and storage over the Internet. Microsoft Azure is an example of a public cloud. With a public cloud, all hardware, software and other supporting infrastructure is owned and managed by the cloud provider. You access these services and manage your account using a web browser.

Public clouds are the most common way of deploying cloud computing. The cloud resources (like servers and storage) are owned and operated by a third-party cloud service provider and delivered over the Internet. Microsoft Azure, Amazon AWS and Google Cloud Platform are examples of a public cloud. With a public cloud, all hardware, software and other supporting infrastructure is owned and managed by the cloud provider. In a public cloud, you share the same hardware, storage and network devices with other organisations or cloud “tenants.” You access services and manage your account using a web browser. Public cloud deployments are frequently used to provide web-based email, online office applications, storage and testing and development environments.

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 Types

A private cloud refers to cloud computing resources used exclusively by a single business or organisation. A private cloud can be physically located on the company’s on-site datacenter. Some companies also pay third-party service providers to host their private cloud. A private cloud is one in which the services and infrastructure are maintained on a private network.

A private cloud consists of computing resources used exclusively by one business or organisation. The private cloud can be physically located at your organisation’s on-site datacenter or it can be hosted by a third-party service provider. But in a private cloud, the services and infrastructure are always maintained on a private network and the hardware and software are dedicated solely to your organisation. In this way, a private cloud can make it easier for an organisation to customise its resources to meet specific IT requirements. Private clouds are often used by government agencies, financial institutions, any other mid- to large-size organisations with business-critical operations seeking enhanced control over their environment.

Advantages of a private clouds:

  • More flexibility—your organisation can customise its cloud environment to meet specific business needs.
  • Improved security—resources are not shared with others, so higher levels of control and security are possible.
  • High scalability—private clouds still afford the scalability and efficiency of a public cloud.

Hybrid Cloud Types

Hybrid clouds combine public and private clouds, bound together by technology that allows data and applications to be shared between them. By allowing data and applications to move between private and public clouds, a hybrid cloud gives your business greater flexibility, more deployment options and helps optimise your existing infrastructure, security and compliance.

Often called “the best of both worlds,” hybrid clouds combine on-premises infrastructure, or private clouds, with public clouds so organisations can reap the advantages of both. In a hybrid cloud, data and applications can move between private and public clouds for greater flexibility and more deployment options. For instance, you can use the public cloud for high-volume, lower-security needs such as web-based email and the private cloud (or other on-premises infrastructure) for sensitive, business-critical operations like financial reporting. In a hybrid cloud, “cloud bursting” is also an option. This is when an application or resource runs in the private cloud until there is a spike in demand (such as seasonal event like online shopping or tax filing), at which point the organisation can “burst through” to the public cloud to tap into additional computing resources.

Advantages of hybrid clouds:

  • Control—your organisation can maintain a private infrastructure for sensitive assets.
  • 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.
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