AWS S3 bucket tier.

 S3 Storage Classes

│

├── Standard (manual, hot data)

│

├── Intelligent-Tiering (auto-managed)

│     ├── Frequent Tier ✅

│     ├── Infrequent Tier ✅

│     ├── Archive Tier ❌

│     └── Deep Archive Tier ❌

│

├── Standard-IA (manual, low cost, retrieval fee)

│

├── Glacier Flexible Retrieval ❌ (restore required)

│

└── Glacier Deep Archive ❌ (slow restore)