- By default all new buckets are private
- You can have bucket policies and ACLs (ACL can go down to individual objects)
- Read after write consistency for puts of new objects
- Eventual consistency for overwrite PUTs and DELETEs
- Storage classes
- S3 standard (99.99 availability, 11 9s durability) can sustain loss of 2 facilities concurrently
- S3-IA lower fee than S3 but you are charged a retrieval fee (99.9% availability)
- S3 One Zone - IA lower cost option if you don't need multi AZ data resilience (99.5% availability)
- S3 Intelligent Tiering