[ovirt-users] How to import from another oVirt / RHV environment

Hello, I have two different oVirt 4.2 environments and I want to migrate some big VMs from one to another. I'm not able to detach and attach the block based domain where are the disks of source. And I cannot use export domain functionality. But the 2 environments, both hosts and engines, are able to communicate. Can I use in some way the import Virtual Machine functionality with the "KVM(via Libvirt)" source type? Or is there (eventually via command line) a way to use virt-v2v in this case? Thanks, Gianluca