ft-config

Use this command to enable fault tolerance, or to change fault tolerant configuration settings that were entered during software initialization. 

ft-config
Note: If you make changes to the configuration of a server in a fault tolerant pair, you must also make change to its peer using the ems-config command. If all appliance settings or the EMS server settings are not the same, the EMS servers will not be able to connect after a restart.

For an explanation of the prompts that follow this command and their settings, see Configure Fault Tolerant Behavior.