AWS Certified CloudOps Engineer - Associate

Disaster Recovery Strategies

RTO and RPO as the numbers that pick the architecture, the four AWS disaster recovery strategies from backup and restore to multi-site active/active, the data plane rule that decides how you fail over, and why every strategy still needs backups.

Advanced 28 minutes 6 Learning Objectives
  1. Define RTO and RPO precisely and use them to select a disaster recovery strategy
  2. Compare backup and restore, pilot light, warm standby, and multi-site active/active by cost, complexity, RTO, and RPO
  3. Explain the difference between pilot light and warm standby in terms of what must happen before traffic can be served
  4. Apply the data plane over control plane rule when designing a failover mechanism
  5. Select the right cross-Region data replication service for a given database or storage layer
  6. Explain why a multi-site active/active architecture still requires point-in-time backups