AWS Storage Gateway, a hybrid cloud storage service, gives you on-premises storage access to virtually unlimited cloud storage. Storage Gateway is used by customers to simplify storage management and lower costs for key hybrid cloud storage uses cases. These include moving tape backups from the cloud, reducing storage on-premises with cloud-backed file share, providing low latency data access in AWS for on premises applications, and various migration, archiving and processing use cases.
The service offers three types of gateways: Tape Gateway, File Gateway and Volume Gateway. These gateways seamlessly connect on-premises applications with cloud storage. They also cache data locally for low latency access. Your applications connect to the service via a virtual machine, hardware gateway appliance, or using standard storage protocols such as NFS and SMB.