Database Scaling

RDS Read Scaling Trade-off Decision | SAA-C03

19 January 2026·1302 words·7 mins

Architecture Drills AWS SAA-C03 FinOps Decision Matrix RDS Read Replica Multi-AZ Database Scaling

Learn why RDS Read Replicas defeat Multi-AZ for read scaling, and how to size them correctly. A critical SAA-C03 scenario analyzing read traffic offloading strategies.

Read-Heavy DB Scaling HA Trade-offs | SAA-C03

23 December 2025·1113 words·6 mins

Architecture Drills AWS SAA-C03 FinOps Decision Matrix Amazon Aurora RDS Database Scaling High Availability

When an e-commerce database can’t keep up with unpredictable read traffic, the solution isn’t just about adding capacity—it’s about choosing the right scaling model that balances performance, availability, and operational simplicity.

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