by Alain Raap.
I made some progress on this subject, testing with Moodle 3.9 and Moodle 4.1 on a Redhat 8 environment. The Moodle 3.9 large backup finishes in the same time as on the Redhat 7 environment (works as expected). The Moodle 4.1 large backup still fails, a smaller backup file that takes 2,5 hours on Moodle 3.9, takes more than 6 hours on Moodle 4.1. So I think the backup process of the new Moodle version is much slower, we'll have to investigate what this will mean for the process time of our automated backup process that runs during the nigt. Anyone else who had problems with time consuming backups in Moodle 4.1?