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Amazon S3 : Under the Hood

Most S3 courses teach you how to use it. This one teaches you how it works. S3 Under the Hood goes beneath the API and into the engineering: how your bytes survive hardware failure, how a flat namespace scales to hundreds of billions of objects, how a single PUT travels from your machine to durable storage across multiple physical buildings. No AWS console, no CLI, just the internals explained from first principles with interactive simulations at every step.