AWS Storage Gateway is a service that connects an on-premises software appliance with cloud-based storage to provide seamless and secure integration between your on-premises IT environment and the AWS storage infrastructure in the cloud.

User Guide
Describes AWS Storage Gateway concepts and provides instructions on using the various veatures with both the console and the API.
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API Reference
Describes the AWS Storage Gateway API and CLI operations. Also provides sample requests, responses, and errors for the supported web services protocols.