Amazon S3 Glacier (Glacier) is a cost-effective storage solution designedfor long-term storage of infrequently accessed data. It provides secure,durable, and easy-to-use storage for data backup and archival purposes.With Glacier, users can store data for extended periods without worryingabout capacity planning or hardware management. Glacier is ideal for whenlow storage costs are a priority and data retrieval is rare. Forapplications requiring fast or frequent access to data, Amazon S3 isrecommended. Users can store data in any format without limits on thetotal amount of data stored in Glacier.