Public, Private and Hybrid Cloud

Public ,Private and Hybrid Cloud overview

Cloud computing spans a range of classifications, types and architecture models. The transformative networked computing model can be categorized into three major types:

  • Public cloud
  • Private cloud
  • Hybrid cloud

The technology service can be accessed in various models and deployment strategies, including the most popular Software as a Service (SaaS), Platform as a Service (PaaS) and Infrastructure as a Service (IaaS). The underlying infrastructure architecture can take various forms and features, including virtualized, software-defined and hyper-converged models, among others.

This article explores the key differences between the classifications of public, private, and hybrid cloud environments.

The public cloud

The public cloud refers to the cloud computing model with which the IT services are delivered across the internet. The service may be free, freemium, or subscription-based, charged based on the computing resources consumed. The computing functionality may range from common services such as email, apps and storage to the enterprise-grade OS platform or infrastructure environments used for software development and testing.

AWS (Amazon Web Services) is a comprehensive, evolving cloud computing platform provided by Amazon that includes a mixture of Infrastructure as a Service (IaaS), Platform as a Service (PaaS) and packaged Software as a Service (SaaS) offerings. AWS can offer an organization tools such as compute power, database storage and content delivery services.

More than 100 services comprise the Amazon Web Services portfolio, including those for compute, databases, infrastructure management, application development and security. These services, by category, include:

  • Compute
  • Storage databases
  • Data management
  • Migration
  • Hybrid cloud
  • Networking
  • Development tools
  • Management
  • Monitoring
  • Security
  • Governance
  • Big data management
  • Analytics
  • Artificial intelligence (AI)
  • Mobile development
  • Messages and notification

The private cloud

The private cloud refers to the cloud solution dedicated for use by a single organization. The data center resources may be located on-premises or operated by a third-party vendor off-site. The computing resources are isolated and delivered via a secure private network, and not shared with other customers.

The hybrid cloud

The hybrid cloud refers to the cloud infrastructure environment that is a mix of public and private cloud solutions. The resources are typically orchestrated as an integrated infrastructure environment. Apps and data workloads can share the resources between public and private cloud deployment based on organizational business and technical policies around security, performance, scalability, cost and efficiency, among other aspects.

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