Thanks to the hybrid cloud computing functionality offered by OpenNebula, external clouds are seen in an OpenNebula system as other local resources. In this way, Sunstone allows the management of all the public clouds that are used in the hybrid configuration of any given enterprise.

This setup is shown in the screenshot, where a private cloud is shown with associated external resources (in this case, three Amazon availability zones), where the compute power can be outsourced during peak demands.