I find out the inventory file ($inventory_location/ContentsXML/inventory.xml) has defined the agent like this:
<HOME NAME='OEM11gAgent" LOC="/urac01/app/agent1g" TYPE="O" IDX="4">
Can I remove the contents between <NODE_LIST> ... </NODE_LIST>? What is the safety way to clean the cluster definition for agent?
the agentca -c is required for clusters, what it does is add an association to the other host and cluster so the agent is aware it's a cluster. it will not change anything on the other agent.