I want to know if it is possible to change the location of the ownBackup folder, so it is outside the general ownCloud data directory.
This is because I want to back them up separately with cron.
Is there an entry that can be added to the config.php file to change the ownBackup location?
Backup software usually can be configured to follow or not to follow symlinks. So you cloud re-create the ownbackup folder as a symlink to somewhere out of the ownCloud root and configure your backup software (if this is applicable for you)
Patch the ownbackup code at the line I linked above to save to a custom directory. This must have rw-permissions for the apache user (requires some PHP programming skills)
I won’t edit my core coding as this will get effected at the next upgrade.
I have seen advise that these backups do not contain reliable back-ups for the full system and shouldn’t be relied on. I am tempted to turn these off and just use my own Cron jobs to backup the database, web folder and data folder.