- AWS proprietary relational database service (not open source).
- Compatible with MySQL and PostgreSQL (same drivers and tools).
- Performance:
- ~5× faster than MySQL on RDS
- ~3× faster than PostgreSQL on RDS
- Storage:
- Auto-scales in 10 GB increments, up to 128 TB
- Read Replicas:
- Up to 15 replicas with <10 ms replication lag
- High Availability:
- Built-in HA with instant failover
- Cost:
- ~20% higher than standard RDS, but more resource-efficient