- S3 Standard - General Purpose
- S3 Standard - Infrequent Access (IA)
- S3 One Zone - Infrequent Access
- S3 Glacier Instant Retrieval
- S3 Glacier Flexible Retrieval
- S3 Glacier Deep Archive
- S3 Intelligent Tiering
S3 is quite durable, and all storage classes have same durability
S3 Standard Storage Classes
S3 Standard - General Purpose
- 99.99% Availability
- Used for frequently accessed data
- Low latency and high throughput
- Sustain 2 concurrent facility failures
Use cases: Big data analytics, mobile & gaming applications, content distribution…
S3 Standard - Infrequent Access
- 99.9% availability
- For less frequently accessed data, but requires rapid access when needed
- Lower cost than S3 standard Use cases: Disaster recovery, backups
S3 One Zone - Infrequent Access
- High durability in a single AZ, data lost when AZ is destroyed
- 99.5% availability Use cases: Storing secondary backup copies of on-premise data, or creatable
S3 Glacier Storage Classes
- Low-cost object storage meant for archiving / backup
- Price for storage + object retrieval cost
Instant Retrieval
- Milliseconds retrieval, great for data accessed once a quarter
- Minimum storage duration of 90 days
Flexible Retrieval
- Expedited (1 to 5 min), Standard (3-5 hours), Bulk (5-12 hours, free)
- Minimum storage duration for 90 days
Deep Archive
- Standard (12 hours), Bulk (48 hours)
- Minimum storage duration of 180 days
S3 Intelligent-Tiering
Small monthly monitoring and auto-tiering fee. Moves objects automatically between Access Tiers based on usage. No retrieval cost
- Frequent Access tier (automatic): default tier
- Infrequent Access tier (automatic): objects not access for 30 days
- Archive Instant Access tier (automatic): objects not access for 90 days
- Archive Access tier (optional): configurable from 90 days to 700+ days
- Deep Archive Access tier (optional): configurable from 180 days to 700+ days
S3 Express One Zone
An unconventional storage class.
- High performance, Single AZ storage class
- Objects stored in Directory Bucket (bucket in a single AZ)
- Handle 100,000s requests per second with single-digit millisecond latency
- Up to 10x better performance than S3 standard (50% lower cost)
- Use case: latency-sensitive apps, AI&ML training, financial modeling…