Well, I futzed around for about 3 hours bouncing the engine and the host,
and finally I hit some combination that allowed me to save the
configuration of the ovirtmgmt network on this host. I had to update my
DHCP configuration to force the correct static IP address to the MAC (not
sure why the host insisted on setting this node to DHCP when I configured
it static everywhere, but we got it).
I now have one host started. Working on the next steps - importing the
storage domain.