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Disaster Recovery in the Cloud: Designing for High Availability

How to design multi-region disaster recovery systems. Understand RTO, RPO, active-passive configurations, and database replication.

Designing for the Unexpected

Hardware failures, regional outages, or security breaches can take applications offline. A disaster recovery (DR) plan ensures your business continues to function.

Core DR Metrics

  • Recovery Time Objective (RTO): The maximum allowed downtime before service is restored.
  • Recovery Point Objective (RPO): The maximum allowed data loss measured in time (e.g., 1 hour of transactions).

Implementing automated database replication and DNS failovers keeps applications resilient against regional network disruptions.

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