RHEV3.0- High Availability during an manual reboot/shutdown/ hard reboot of Hypervisor

Hi,

I have an RHEV Hypervisor 6.2 configured and using RHEV 3.o manager. I  have high availability enabled to all the VM’s. now when I reboot one node, I see VM’s going in to unknown state. I don’t have power management configured. So does high availability don’t work on reboot/shutdown/hard reboot  of Hypervisor ????

Thanks,

Inbaraj