The new backup and restore which is administered from admin.atlassian.com only allows downloading the backup file if the generated backup <= 50GB.

This is described in Backup and Restore Solution.

Suggestion

As there was no such limitation in legacy method (System -> Backup manager) of taking the backup, there should be an option to allow download of Backup file regardless of its size. It would be helpful if,

• Users can get fileID of already generated backup file, so that they can leverage CURL command to download the larger Backup files in their local.
• Or if the generated Backup is > 50 GB, there should be a fallback link to (system -> Backup manager) which will show the link to download the file.