I am running Moodle 2.8 on a shared hosting service. with a claimed 1 Gb of memory. There is only one course, and most pages are a quiz linked to a course question bank. It is a new site so about a dozen pages. some a single page with links inserted to graphics outside Moodle and others are quizzes linked to a 100 item quiz bank with half a dozen folders. So a tiny site to back up.
I have about 370 users and between them they have answered about 5 000 quiz pages each of about 10 questions in the six weeks I have been running the site. I have had about 50 on at one time and the site has not appreciably slowed nor has the hosting company complained. So i am happy with my first Moodle site.
But course backups fail with an internal server error. I can run course backups with the "enrolled users" ticked and the backup completes and when the "question bank" is ticked it is fine but if both are selected it fails.
I am not sure if this is a resources problem to be dealt with by my hosting service or something mis-configured. As a live site relying on database backups, i am wary of changing much. Any suggestions?