How to redirect grid agent to another OMS in 12cGrid Control

 Redirecting Oracle Management Agent to Another OMS

If you want to redirect or repoint your Oracle Management Agent (Management Agent), which is already communicating with an Oracle Management Service (OMS), to communicate and upload data to another OMS, then follow these steps:

1. Stop the Management Agent:
   $/bin/emctl stop agent
2. Remove the Management Agent instance home:
   rm -rf
3. From the Enterprise Manager Cloud Control console, remove the targets monitored by the Management Agent.
4. Create a new instance home for the Management Agent so that it directs to the new OMS:
   $/core/12.1.0.2.0/sysman/install/agentDeploy.sh AGENT_BASE_DIR= OMS_HOST= EM_UPLOAD_PORT= AGENT_REGISTRATION_PASSWORD= AGENT_INSTANCE_HOME= -configOnly
   Note:

   The specified agent base directory location and the new agent instance home location map to locations on the same host, where the Management Agent was already configured. The OMS host name, of course, maps to the other host where the new OMS is configured, that is, the OMS with which you want the Management Agent to communicate now.