Storage
Amazon S3 Intelligent-Tiering
Amazon S3 Intelligent-Tiering automatically moves eligible objects among access tiers as access patterns change. It reduces storage expense for GenAI corpora and artifacts with unpredictable reuse while preserving millisecond access in frequent-access tiers.
Key points
- Monitoring and automation charges apply per eligible object
- Archive access tiers require opt-in and introduce retrieval delay
- Objects move based on observed access without retrieval charges among automatic access tiers
When to use it
- Optimize a document corpus whose query popularity changes over time
- Store historical model artifacts with uncertain future access
Exam tips
- Choose Intelligent-Tiering when access is unpredictable and Lifecycle rules when age-based transitions are known
- Exclude tiny short-lived objects where monitoring cost outweighs savings and account for archive restore latency