Azure Global Infrastructure

Regions

  • Each region has more than one data center, which is a physical location.
  • A group of data centers deployed in a latency-defined perimeter and connected through a dedicated regional low latency network.
  • Criteria in choosing a Region:
    • Location – a region closest to your users minimizes the latency
    • Features – some features are not available in all regions
    • Price – the price of services vary from region to region
  • Each Region is paired within the same geographic area
  • If the primary region has an outage, you can failover to the secondary region
  • You can use paired regions for replication
  • Regions that are unique when it comes to compliance:
    • Azure Government Cloud – only US federal, state, local, and tribal governments and their partners have access to this dedicated instance
    • China Region – data center is physically located within China and has no connection outside of China, including other Azure regions

Availability Zones

  • Each availability zone is a physical location within a region
  • A zone is composed of one or more data centers with independent power, cooling, and networking facilities.
  • Azure services that support Availability Zones fall into two categories:
    • Zonal services – a resource is pinned to a specific zone
    • Zone-redundant services – replicates automatically across zones

Resource Groups

  • A container that holds related resources
  • Each resource can only exist in a single resource group
  • You can add or remove resources to any resource group at any time
  • Allows you to move a resource from one resource group to another
  • Resources from multiple regions can be in one resource group
  • You can give users access to a resource group
  • Resources can interact with other resources in different resource groups
  • A resource group has a location, or region, as it stores metadata about the resources
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Azure Resource Manager (ARM)

  • A management layer allowing you to create, update and delete resources within your account.
  • You can deploy, manage, and monitor resources as a group
  • Resource Manager template is mainly used to deploy the resources consistently and repeatedly.
  • Define the dependencies between resources so they’re deployed in the correct order.
  • Tag resources to logically organize all the resources in your subscription.
  • You can check the costs for a group of resources sharing the same tag.

Azure Site Recovery

  • Azure’s disaster recovery as a service (DRaaS)
  • You can minimize recovery issues by sequencing the order of multi-tier applications that run on several virtual machines.
  • Keep applications available from on-premises to Azure or Azure to another Azure region during outages with automatic recovery.

How Does Microsoft Azure Work?

Sources:
https://docs.microsoft.com/en-us/learn/modules/explore-azure-infrastructure/
https://docs.microsoft.com/en-us/azure/availability-zones/az-overview
https://azure.microsoft.com/en-us/global-infrastructure/government/
https://docs.microsoft.com/en-us/azure/china/overview-operations
https://docs.microsoft.com/en-us/azure/azure-resource-manager/management/overview
https://azure.microsoft.com/en-us/services/site-recovery/

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