by Alain Raap.
Hi Ken,
The backups that cause the long time to run are very large courses (2GB) with a lot of users and quizes included. They are already used for a long time and because of the long time to run they were a reason to exclude them from the normal automated backup run. But now the largest course that ran 12 hours in Moodle 3.9, doesn't finish between the last and next automated backup anymore.
The only difference in the environments is Redhat 7/Moodle 3.9/PHP 7.2 versus Redhat 8/Moodle 4.1/PHP 7.4.