If you add or remove the MGMT configuration of a member, the member will reboot.
Notes on configuring MGMT port
The MGMT interface must be in a subnet that is separate from LAN1.
If you delete a member from the Grid GUI, the member will reboot and come back up with the same IP it has.
MGMT Port
You can edit the MGMT interface of one none in a HA pair. It will reboot that node but not the other node of the HA pair.
If MGMT port is enabled on a node, then the node will use that port to communicate with the reporting server (if there is one)