I have a similar setup with a 710 and 1060.   All you need to do to ensure the 1030 is available for the VM is to go to Tools > System Devices in the Unraid interface, and check the box next to that card (and any associated devices i.e. audio controller), and press the BIND SELECTED TO VFIO AT BOOT button.  Upon next reboot it should be free for VM use.   If you don't do this step, that GPU will bind to the NVidia driver instead.
    • Like
    1