Saving the Em Key
Always-On Monitoring requires the Em key in order to be able to synchronize with the Enterprise Manager repository and reuse the SMTP (email) gateway configuration information from Enterprise Manager.
Note:
The Em key needs to be copied to the Enterprise Manager repository BEFORE configuring Always-On Monitoring. Not doing so will result in errors when running emsca.
Once Always-On Monitoring configuration is complete (emsca has successfully run through completion), immediately remove the Em key from the Enterprise Manager repository. Note: Always-On Monitoring does not have to be restarted. To store the key in the repository, run the following emctl commands from the $MW_HOME/bin directory, where $MW_HOME is the Enterprise Manager Middleware Home directory.
% emctl config emkey -copy_to_repos
Once Always-On Monitoring configuration is complete, execute the following command to remove the key.
% emctl config emkey -remove_from_repos