3. High Availability - Host Initiated Reboot
At this stage you now have six running virtual machines, three of which are highly available. This section simulates an event in which a user error has caused a temporary host failure, after which the host recovers, but the virtual machines which were running on the host are terminated. In this case, the host is manually fenced before being placed into maintenance mode.
You have just run a demonstration where a host was manually fenced before the virtual machines on it were properly shut down, causing the virtual machines to crash. When virtual machines are not properly stopped, only the highly available ones are restarted on another host in the cluster. In contrast, the non-highly available machines remain powered down until they are manually restarted.