HA was enabled and working.
Most of the HA settings are default, so not sure about the "HA host monitoring feature" and "cluster default restart priority". It was HA protected, but I think gets lost after one of the dual node goes down?
Ok, doing a check...
HA monitoring is enabled. Looks like Cluster-default VM-restart priority is set to medium.
Only attempted to power on the one registered to the one rebooted host. Was not able to attempt to power up the other as routing to vcenter is down in this failure scenario (and the host it was running on is also down, so only have access to the secondary host). Not sure how to register the 2nd VM of the pair using the command line.
Not sure how to tell what vSphere HA version I am using? I have 5.1 with the 3 patches for it.