Nested virtualization is amazingly popular with VMware enthusiasts everywhere — especially judging by the continual flow of traffic to VCritical pages on the topic. Without this capability it would be quite expensive and complicated to set up sophisticated vSphere cloud infrastructures for learning and experimenting.
I’ve had some conversations recently with VMware R&D around nested virtualization use cases — there is some interest in understanding what customers are doing with virtual vSphere environments. The obvious use case is to experiment with larger clusters and features designed to support them, such as the Distributed Switch.
What uses have you found for virtualized VMware ESXi hypervisor hosts? VCP exam prep? Architecture validation? Tinkering at home? VMware ISV partner development environment? Would greatly appreciate you sharing in the comments below.