I discovered a issues with the queues and queue members, and I am also wondering if it is possible to run this with a cronjob every night. So have sort of a warm spare machine ready in case the primary goes down.
Because asterisk is active on both servers and it is a replica (it is not High Availability), the MySqLite astdb database cannot be replicated since asterisk blocks it on the backup server. This is a limitation of this model. The only thing that can be done is to stop the asterisk on the secondary server and clone this database as well.
By stopping Asterisk on the backup server, it implies that Asterisk could not start automatically on both servers, we would have to start it manually.