When a regional failure occurs, all of the Availability Zones (AZs) in that region are unavailable. However, if a workload is configured for high availability between AZs, it can continue to operate even if one AZ fails.
Under the AWS Shared Responsibility Model, AWS is responsible for the underlying hardware and infrastructure maintenance. However, it is the customer’s responsibility to ensure that their Cloud configuration provides resiliency against a partial or total failure.
To achieve this, businesses need to architect their workloads for resiliency. Resiliency is the ability of a workload to recover from infrastructure, service, or application disruptions, dynamically acquire computing resources to meet demand, and mitigate disruptions, such as misconfigurations or transient network issues.
There are several ways to architect for resiliency, including:
✅Distributing workloads across multiple AZs
✅Using fault-tolerant services
✅Implementing disaster recovery plans
✅Monitoring and alerting for potential problems
By architecting resilience, businesses can protect their data and applications from unexpected outages and keep their operations running smoothly.
Introduction
When a regional failure occurs, all of the Availability Zones (AZs) in that region are unavailable. However, if a workload is configured for high availability between AZs, it can continue to operate even if one AZ fails.
Under the AWS Shared Responsibility Model, AWS is responsible for the underlying hardware and infrastructure maintenance. However, it is the customer’s responsibility to ensure that their Cloud configuration provides resiliency against a partial or total failure.
To achieve this, businesses need to architect their workloads for resiliency. Resiliency is the ability of a workload to recover from infrastructure, service, or application disruptions, dynamically acquire computing resources to meet demand, and mitigate disruptions, such as misconfigurations or transient network issues.
There are several ways to architect for resiliency, including:
✅Distributing workloads across multiple AZs
✅Using fault-tolerant services
✅Implementing disaster recovery plans
✅Monitoring and alerting for potential problems
Conclusion
By architecting resilience, businesses can protect their data and applications from unexpected outages and keep their operations running smoothly.
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