Cloud 101: Deployment Models

Cloud Deployment models are of three types:

  1. Private
  2. Public
  3. Hybrid

Private Cloud

  • Cloud infrastructure operated solely for a single organization.
  • It is managed internally or by a third-party, and hosted either internally or externally.
  • This model offers the versatility and convenience of the cloud, while preserving the management, control and security common to local data centers.
  • Self-run data centers are generally capital intensive.
  • They require allocation of space, hardware, and environmental controls.
  • These assets have to be refreshed and checked periodically, resulting in additional capital expenditures, which has been much criticized.
  • It has Single tenant architecture.
  • HPE, Microsoft, OpenStack, VMWare, Dell, RedHat.

Public Cloud

  • Services are rendered by third party provider over a network that is open for public use.
  • May be free to use.
  • No server needs to be set up on-premise.
  • Multi-tenant Architecture.
  • Pay-as-go model.
  • Security, Storage. application services are provided.
  • Amazon Web Services(AWS), Microsoft Azure, Google Cloud etc.

Hybrid Cloud

  • Mix of On-premise, private and third party public cloud services.
  • Has benefits of both public and private clouds.
  • Cloud bursting capabilities.
  • It allows one to extend either the capacity or the capability of a cloud service, by aggregation, integration or customization with another cloud service.
  • or example, Companies can run critical workloads or sensitive applications on the private cloud and use the public cloud to handle workload bursts or spikes in demand.
  • Embraces multicloud model.

The above points are basic ones to get an overview. I will explain them in details in upcoming posts!

References: 

https://en.wikipedia.org/wiki/Cloud_computing#cite_note-nist-56

https://searchcloudcomputing.techtarget.com/definition/cloud-computing

 

 

 

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