by Alain Raap.
We have implemented the automated backup with a Moodle instance on the databaseserver in production and it's running for several weeks now without any problems, all changed (and new) courses are being backup-ed again. All courses are in sync now and new courses are added to the mdl_backup_courses table again.
In this message I already wrote about this issue and how we solved it https://moodle.org/mod/forum/discuss.php?d=385643
The large course that takes 9,5 hours to backup , is backup-ed in the weekend now, and kept outside the automated backup, run with a bash script which backups one or more large courses from an inputfile.