Are you interested in our Early Access Program (EAP)? This program allows you to preview code, test in your lab and provide feedback prior to General Availability (GA) release of all Infoblox products. If so, please click the link here.
You can only migrate NIOS virtual as a cold migration without any outages, e.g. ESXi to ESXI. Infoblox does not support any clone operations for VM instances because each virtual appliance requires a one Hardware id.