If you would like to remove a node from your cluster and add a new one, please follow these steps:
- Power off the machine you want to remove from the cluster. (No preparations are needed.)
- Using the Cluster's IP address, click on the High Availability module under Settings.
- Going to the Status page will show that freepbx-a (or -b) is the current active Master and freepbx-b (or -a) is offline.
- Now follow the steps on joining a Node to your cluster here. If your old slave is still powered on when you try to join a new slave, it will error out, so make sure you power down the old slave.