What is VMware vCloud, and Why Should You Use it
https://www.altaro.com/vmware/vmware-vcloudAccompanying VMware Cloud Director, vCloud Air customers can make use of vCloud Connector, a vSphere plugin that connects up to 10 private and public clouds. Using vCloud Connector, customers can harness the full power of hybrid cloud from a single interface to help with private data center extension and migration to a public cloud, or management of hybrid cloud setups.
vCloud Air - Wikipedia
https://en.wikipedia.org/wiki/VCloud_AirvCloud Air was a public cloud computing service built on vSphere from VMware. vCloud Air has three "infrastructure as a service" (IaaS) subscription service types: dedicated cloud, virtual private cloud, and disaster recovery. vCloud Air also offers a pay-as-you-go service named Virtual Private Cloud