I have a similar issue/request. It would be great if there was a way to interact with AWS Glacier via Nakivo. I have a set of backups that are used for archival purposes, and I'm looking at storing them in Glacier. Nakivo looks like it won't do this, meaning I'll need to use another solution to manage these archives.
Has anyone tried using Nakivo with the AWS Tape Gateway while storing the data in Glacier?