Removing the Node Association
You can remove the host name and port number associated with a node. When you remove the node association, the node remains in the domain, but it is not associated with a host machine.
To associate a different host machine with the node, you must run the installation program or infasetup DefineGatewayNode or infasetup DefineWorkerNode command on the new host machine, and then restart the node on the new host machine.
1. In the Administrator tool, click the Manage tab > Services and Nodes view.
2. In the Navigator, select a node.
3. In the Services and Nodes view Actions menu, select Remove Node Association.