Amazon Web Services → Microsoft Azure
Azure equivalent of Amazon S3 storage classes
S3 storage classes map to Blob access tiers.
About Amazon S3 storage classes
| Provider | Amazon Web Services |
|---|---|
| Status | Generally available |
| What it is | Standard, Intelligent-Tiering, Express One Zone, Standard-IA, One Zone-IA, Glacier Instant Retrieval, Glacier Flexible Retrieval, and Glacier Deep Archive. Minimum storage durations are 30 days (the IA classes), 90 days (Glacier Instant and Flexible), and 180 days (Deep Archive). |
| Documentation | docs.aws.amazon.com |
| Pricing | Official pricing page |
Azure mappings (1)
| Capability | Azure equivalent | Match |
|---|---|---|
| Object storage cost tiers (infrequent access and archive) | Blob Storage access tiers (hot, cool, cold, archive) | Direct match |
Object tiers, lifecycle & protection(1)
Object storage cost tiers (infrequent access and archive) Direct match
S3 storage classes map to Blob access tiers. Standard-IA maps to cool (30-day minimum), Glacier Instant Retrieval maps to cold (90 days), and Glacier Flexible Retrieval and Deep Archive both map to archive (180 days, offline).
- Granularity. In S3 the storage class is set per object. On Azure the tier is set per block blob, with a default tier (hot, cool, cold, or smart) set on the account.
- Archive. Azure has one archive tier. Rehydration takes up to 15 hours and must go to an online tier before you can read. S3 has two archive classes, Glacier Flexible Retrieval (minutes to hours) and Deep Archive (within 12 hours for standard retrieval, lowest cost), and restores create a temporary copy.
- Redundancy limits. Blob archive isn't supported in ZRS, GZRS, or RA-GZRS accounts. S3 Glacier classes keep their multi-AZ design.