Explanation: In AWS Storage Gateway, using Gateway virtual tape library (VTL), you can cost-effectively and durably store archive and long-term backup data in Amazon Glacier. Gateway-VTL provides virtual tape infrastructure that scales seamlessly with your business needs and eliminates the operational burden of provisioning, scaling and maintaining a physical tape infrastructure. Reference:
http://docs.aws.amazon.com/storagegateway/latest/userguide/WhatIsSt…