Azure Blob Storage
Azure's object storage, organised into containers of blobs. Distinguishes block, append and page blob types, which S3 and Cloud Storage do not.
Giới hạn
A block blob holds at most 50,000 blocks of up to 4,000 MiB each, giving a maximum size of approximately 190.7 TiB
A single write operation via Put Blob is limited to 5,000 MiB (service version 2019-12-12 and later)
An append blob is limited to 50,000 blocks of 4 MiB, approximately 195 GiB in total
Target request rate for a single block blob is up to 3,000 requests per second; concentrated traffic on sequentially named blobs can create a hot partition and return HTTP 503 before documented limits are reached
Mô hình giá
Per-GB-month of stored data by access tier, plus per-operation charges that differ by tier, plus egress. Cooler tiers trade lower storage cost for higher read cost, so the cheapest tier depends on how often the data is actually read.
Dịch vụ tương đương ở nhà cung cấp khác
- Amazon S3
Khác biệt cần lưu ý: Azure forces an up-front choice of blob type that S3 has no equivalent of: block blobs reach about 190.7 TiB, append blobs only about 195 GiB, and page blobs 8 TiB. Picking append-blob for a log sink that later needs to hold terabytes is a migration, not a setting change.