same issue here. I guess now that I read your post that its an HP bug 'somehow' (to blame someone).
maybe thats why ovirt asks for fencing interfaces as ilo/imm/ipmi, to hard reboot the server in case there's an issue like this.

just my 2c

2016-11-22 13:22 GMT-03:00 Luigi Fanton <lfanton@synt.net>:
Hello to all,
I'm just playing with ovirt4, installed on HP server with CentOS 7, and a virtual machineĀ  as host engine.
I have a lot of problems with the server shutdown!
The server dosn't power off and will reboot after some "kernel panic" error.

To turn off the ovirt server:
1) Put ovirt in global maintinience (hosted-engine --set-maintenance --mode=global)
2) Host engine shutdown and check vm-status
3) Finaly, shutdown server and wait ... wait ... wait

Whats wrong?! -_-

best regards
Luigi F.

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