Help Center/ Well-Architected Framework/ Well-Architected Framework and Practices/ Resilience Pillar/ Rapid Fault Recovery/ RES10 Fault Isolation/ RES10-02 Deploying Application Systems in Multiple Locations

Updated on 2025-05-22 GMT+08:00

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RES10-02 Deploying Application Systems in Multiple Locations

An application system can be deployed at multiple locations to prevent system unavailability due to infrastructure faults at one location.

Risk level
High
Key strategies
- Deploy the data and resources of an application system in multiple AZs to prevent service interruptions caused by faults in a single AZ.
- Deploy an application system that has high availability requirements in multiple regions to prevent service interruptions caused by faults in a single region.
- If a multi-AZ architecture can meet application availability requirements, multi-region deployment is not required.

Parent topic: RES10 Fault Isolation

Previous topic: RES10-01 Isolating the Control Plane from the Data Plane

Next topic: RES10-03 Adopting a Grid Architecture

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