Under the hood, S3's storage nodes are also built on a log-structured file system: https://cdn.amazon.science/77/5e/4a7c238f4ce890efdc325df83263/using-lightweig

Under the hood, S3's storage nodes are also built on a log-structured file system: https://cdn.amazon.science/77/5e/4a7c238f4ce890efdc325df83263/using-lightweight-formal-methods-to-validate-a-key-value-storage-node-in-amazon-s3-2.pdf https://cdn.amazon.science/77/5e/4a7c238f4ce890efdc325df8326... (Not posix compliant because it doesn't need to be.)