I'm pretty new to Moodle and I'm looking at setting up two systems that are redundant to each other. I think I've got MySQL multi-master replication working just fine, but could use a couple of pointers on what data exactly to replicate between two Moodle systems.
I see references to using rsync (or unison) to mirror the moodle_data directory - but does it cause problems to simply rsync both ways between two servers? Are there sub-folders I need to exclude form the rsync? Do I need to bother to rsync the moodle_web folders as well? And what sub-folders/files should I exclude from there?
Any thoughts/hints greatly appreciated. Thanks!!!