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Infrastructure Design & Architecture,

High Availability Layers

High Availability Layers

The term “High Availability” is used generically these days and has a different meaning to different people. Per above diagram, each layer requires its own High Availability for redundancy. For example, at the Physical layer providing multiple NIC cards, Switches, etc., is great for eliminating single point of failure on the physical layer but it does not address failures at the above layers, Virtualization, OS or/and Application layer. On the other hand, redundancy at application level does not make the underlying physical hardware or other layers redundant. Each layer requires its own High Availability planning and it is important to clarify when a customer says I want High Availability.

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1 Comment

Mark

September 27, 2014

This is really good post thank you.

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Recent Comments

  • Virtual Tarzan on Cracking the Code of Multi-Cloud Challenges: Your Roadmap to Success
  • Mike on Cracking the Code of Multi-Cloud Challenges: Your Roadmap to Success
  • Ramos on Cracking the Code of Multi-Cloud Challenges: Your Roadmap to Success
  • Virtual Tarzan on The Cloud Strategy Debate: Radical Transformation vs. Cautious Improvement
  • Virtual Tarzan on The Cloud Strategy Debate: Radical Transformation vs. Cautious Improvement

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