Azure Tutorials Series- Azure Data centres

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Having covered Azure billing, subscription, licensing, purchasing, support in previous articles. We will learn about Azure Data centres in this article.

Azure Data Centres

Azure Data centres allows you to be global. Let's look at the holistic view of a data centre
  •     World
    • Geography
      • Region
        • Availability Zone
          • Data center
It is possible to choose availability alone and region to deploy the resource.

Azure Regions

  • Consists of at least one or more data centres that are networked together with a low-latency network.
  • Some of the specific resources may or may not be available in all the data centres.
  • Regions enhances scalability, redundancy.
  • Microsoft has 54 region distributed worldwide.
  • Maintains data security and residency.  Meets compliance and resilience requirements for your customers.

Special Regions  

  • Special regions as the name goes are for government or official use
  • It maintains compliance policies, such as Azure government
  • It has private network isolated from the other networks
  • Microsoft doesn't maintain the datacenters for special regions
  • For example - China North and China East maintains special regions.

Geographies

  • Each region belongs to a single geography
  • We can refer geography as a country which has its own compliance policies
  • Geographies are further sub divided into following areas-
    • America
    • Europe
    • Asia Pacific
    • Middle East and Africa

Availability Zones

  • Availability zones are physically separate facilities with independent cooling, power and networking infrastructure.
  • Availability zones are designed to protect from data centre level failures
  • Physically separate data centres within a region.
  • Helps in making the application highly available through redundancy
  • Primarily used as an backup plan in case of some natural disaster.
  • identified as 1-2-3
  • logically mapped to a physical zone using high speed, private finer optic network.
  • Some regions do not support availability zones.
  • Zonal services are services which allows customer to choose availability zones 

Region Pairs

  • Each region is paired to another region within some km in a geography.
  • The motive being, if one region fails due to some unforeseen circumstance, other region take the control and provide high availability.
  • Data residency is accomplished using this approach.
  • All Azure Regions have a region pair
  • Region pairs are synchronised to ensure that they are not updated at the same time.
  • Each region has exactly on pair assigned 

Note - Region Pairs and Geographies protects your applications from region-wide disasters. Both are fault tolerant.

Zone enabled Azure Regions must have a minimum of three availability zones.

That's all we need to cover under Datacenters, hopefully you now have good knowledge of Azure Datacenters, and believe me the layout of each data centre is fascinating and marvellous. I would suggest you to go through some of the youtube videos where they have walked you through the data centres. Happy Learning!



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