You must use the SnapCenter Add Host wizard to add hosts, and then install the SnapCenter Plug-ins Package for Linux. The plug-ins are automatically installed on the remote hosts.
You can add a host and install plug-in packages either for an individual host or for a cluster. If you are installing the plug-in on a cluster (Oracle RAC), the plug-in is installed on all of the nodes of the cluster. For Oracle RAC One Node, you should install the plug-in on both active and passive nodes.
The administration documentation contains information about managing hosts.
After installing the plug-in, all of the databases on that host are automatically discovered and displayed in the Resources page. If nothing is displayed, click Refresh Resources.