RHEV-M setup often thinks IPA setup worked when it hasn't

IPA is extremely picky about DNS, hostnames etc - if for example forward and reverse DNS are set correctly but the hostname isn't a FDQN, it will appear to start but not function correctly.  In this case, the RHEV installer will think that IPA is working when it isn't.

There are a bunch of other cases where IPA can appear to be working to the RHEV installer when it isn't, but that's the one I can remember right now.