Tape Gateway, a member of the AWS Storage Gateway service family, now supports IBM Spectrum Protect (Tivoli Storage Manager) version 7.1.9 running on Linux. Tape Gateway also increases the maximum supported virtual tape size from 2.5 TiB to 5 TiB to help you store more data on a single tape and ease tape management.

from Recent Announcements https://aws.amazon.com/about-aws/whats-new/2019/09/aws-storage-gateway-supports-ibm-spectrum-protect-on-linux-and-5-tib-tapes/