RDS for Db2
- Docs: https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/CHAP_Db2.html
- Docs (llms.txt): https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/llms.txt
- Data model: Relational (IBM Db2)
- Query language: Db2 SQL
- Compatibility: IBM Db2 (Community Edition, Standard Edition, Advanced Edition)
- Serverless: No (fixed instance types)
- Scale to zero: No
- VPC required: Yes
- Multi-region: Cross-region read replicas using HADR (active-passive DR)
- Free Tier: None
- Min cost: ~$25/month (Community Edition License Included, db.t3.small)
- Time to first query: 15-20 min (VPC + instance + Db2 configuration)
- Key features: IBM Db2 compatibility, automated backups, Multi-AZ, Db2-native tools support
- Limitations: IBM licensing cost, no serverless, smaller community than PostgreSQL/MySQL
- Best for: Lift-and-shift Db2 migrations, mainframe modernization first step, teams with Db2 expertise and existing licenses (BYOL)
- Not for: New applications (use Aurora PostgreSQL or DSQL), cost-sensitive workloads, teams looking to move off commercial licensing (that's a refactor)