by Rosario Carcò.
Davo explained to me here:
https://moodle.org/mod/forum/discuss.php?d=200616
And someone should test, if the backup-mbz files could also be stored in the file-systems-repository Mary talks about. If you can use it to upload a large mbz-file to restore later, it should also work in the opposite direction, to have all mbz-files stored there.
Rosario