One option for MySQL database backups is to have a replica and then dump from the replica. This allows you to leave the primary database active and accessible during the dump.
Below is a link to a script which you may use to create an archive of the Open Directory on a Mac OS X server. In addition, link to the script listed below also contains an example of how to dump Mac OS X server settings.
There are two obvious approaches to scheduling the dumps of this data. Firstly, you may use the example listed in the scripts within a pre-action script attached to an already scheduled LBackup configuration. Another approach is to run these commands/script(s) with scheduling utility.
Regardless, you should ensure that the archives are stored within a source directory for your backup.