Design S3-like object storage at scale — requirements, capacity, and trade-offs.
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How would you design S3-like object storage?
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Design S3-like Object Storage
S3 provides 11x9 durability via erasure coding + strong read-after-write.
| Layer | Detail |
|---|---|
| Data plane | PUT → consistent hashing to shard → WAL + EC 6+3 across AZs |
| Metadata | MySQL bucket/key → shard + R/W quorum |
| Multipart | `CreateMulti |
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