Configuring a backup controller for disaster recovery
You can configure a backup controller (also known as a remote hot standby controller) and use it to replace the primary controller in the event of a system or connection failure. The backup controller is continuously connected with the primary controller through TCP/IP and kept updated with all the required data. When the backup controller takes over from the primary controller, the tracker, if running, switches the connection from the primary to the backup controller. For detailed information about configuring a backup controller, see IBM® Z Workload Scheduler: Managing the Workload and IBM Z Workload Scheduler: Customization and Tuning.