With the new release of Oracle Enterprise Manager 12.0.5, Oracle has added even more functionality to their Management Server (OMS). This latest version expands on plugin integration with the Oracle public cloud services, and adds Oracle virtualization plugin (188.8.131.52) which provides complete control of your private cloud. Additionally, OMS also comes with the ability to deploy agents so that you can monitor and control your existing hardware and virtual machines. By implementing these agents within your virtualized environment, you can automate the patching process for all your VMs.
By implementing a couple instances of the new Oracle Enterprise Manager, you can have complete control over public and private clouds, and all your middleware applications.