Why VM down when I down the Redhat Manager

I have two hosts and a Redhat manager. Radhat manager installs in a physical system. I create a VM in host 1. Every thing is working fine when Redhat manager and host both are alive. But when I shut down Redhat manager, VM also down that time both the host alive.

My question is why VM down when I down the manager. As per VMware if vcenter down that is not affected to any VM if the host is up. But in RedHat scenario that's not work. It is Redhat features or some thing needs to configure.