RDS Multi-AZ and Route 53

14 min · Module 5

RDS Multi-AZ synchronous standby for failover (HA), not a read-scaling feature. Read replicas help read scale (async). Route 53 routing policies: simple, failover, weighted, latency, geolocation — alias records to AWS resources.

Example / notes

# HA: Multi-AZ RDS (failover)
# Read scale: read replicas (watch replication lag)
# Route 53 failover: primary ALB + secondary static/S3 or other Region

Practice in Lab: /lab/scenarios/three-tier/

← S3 storage classes and access

Modules in this track

4. Compute & load balancing
- EC2 and Auto Scaling
- Elastic Load Balancing
5. Storage, database & DNS
- S3 storage classes and access
- RDS Multi-AZ and Route 53