S3 a fast core functionality for object storage, but no file system.
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The use cases above give an overview of scenarios to store data in S3 buckets. Data is stored as an object within the buckets. The max. size for a single object i limited to 5 TB and 99.999999999% durable is a value to trust. At S3 the requester pays, versioning is possible, hosting of static websites or object lifecycle management are a good purpose to choose this storage bucket in your architecture.