I seem to be having a recurring performance hit every Saturday morning at 3:30-4AM.
Could someone help me out with what might be running once a week during that time? I've checked through the moodle log, cron, etc but it looks like the same jobs that run every other day without causing a problem.
What comes to mind is course backups or some OSs or DBs will do a "snapshot" which can drag performance pretty bad.