Database Insights

Understand RDS Multi-AZ for HA and Read Replicas for read scaling — failover behavior, replication lag, and costs

Use Aurora Serverless v2 for cost-effective scaling — ACU configuration, scaling behavior, and when it fits

Deploy Aurora Global Database for sub-second cross-region replication. Understand storage-level replication, planned failover vs unplanned, and write forwarding for read regions.

RDS MySQL audit logs stored in CloudWatch cost significantly more than S3 — and most teams don't need real-time log access. Here's how to export audit logs to S3 and cut your AWS bill.

AWS DMS can migrate terabytes of data with zero downtime — but default settings leave significant performance on the table. Here's how to tune DMS for production-grade migrations.

Cut AWS database costs systematically: find over-provisioned RDS with Compute Optimizer, stop dev DBs after hours, buy Reserved Instances, and control storage growth.

Four configuration mistakes account for 60% of AWS database waste. Learn to right-size to Graviton3, convert gp2 to gp3 storage, audit idle replicas, and use Reserved Instances to cut your database bill by 25-40%.

Supabase, PlanetScale, and Neon each take a different approach to serverless databases. Compare their connection limits, branching features, cost models, and which fits your workload.

Understand the difference between RDS Multi-AZ and Read Replicas. Decision matrix covering HA, read scaling, Aurora cluster behavior, and cross-region DR.

Aurora and RDS share the MySQL engine but diverge at the storage layer in ways that produce very different cost and performance profiles — the right choice depends entirely on your I/O pattern.

Authenticate to RDS and Aurora using IAM credentials instead of passwords. Eliminates long-lived passwords with 15-minute token-based access. Covers PostgreSQL and MySQL setup.

Configure Aurora Serverless v2 for production workloads. ACU sizing, RDS Proxy integration, CloudWatch monitoring, and cost vs provisioned comparison.