High availability is a critical concept in Azure that ensures applications and services remain accessible and operational even in the event of failures or disruptions. It involves implementing strategies and utilizing specific services to minimize downtime, maintain service continuity, and deliver a seamless user experience. Let's explore the concept of high availability in Azure and discuss the strategies and services used to achieve it:
1. Redundancy and Fault Tolerance:
* Redundancy involves deploying multiple instances of critical components or services across different Azure regions or availability zones. This ensures that if one region or zone experiences an outage, traffic can be automatically routed to another region or zone without interruption.
* Azure provides built-in fault tolerance mechanisms, such as availability sets and availability zones, to distribute resources and workloads across multiple physical locations, protecting against hardware or infrastructure failures.
2. Availability Sets:
* Availability sets are logical groupings of VMs within Azure that are distributed across fault domains and update domains.
* Fault domains represent the group of hardware that shares a common power source and network switch, minimizing the impact of hardware failur....
Log in to view the answer
