AWS S3 storage tiering reduces costs by automatically moving infrequently accessed data

AWS S3 storage tiering automatically moves data objects from expensive to cheaper storage classes as access frequency decreases. It uses lifecycle rules to transition data between six storage tiers, from Standard to Glacier Deep Archive. This approach significantly reduces recurring storage costs without deleting data or changing application interfaces. Colder storage classes have lower per-GB rates but impose retrieval charges and minimum storage durations. The system is most cost-effective for data that is rarely accessed after initial use.