Up till now I’ve been having my backup drive backup the entire openemr directory. I would guess that that is probably not needed. Which folders do I actually need to have automatic backup on so that I could completely restore the system should my server fail?
In the oemr base directory is a subdirectory called “sites”, which contains all the scanned/uploaded documents and site-specific data. All the database data is in your database installation, which you would also have to backup, usually by exporting the data to a “sql” file. There are also a few custom settings in the oemr base directory, but they don’t need to be backed up if they haven’t been changed since the last backup.