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