[ovirt-users] Cluster policy question

Hi list! I am running ovirt 3.5.2 with 3 identical nodes. I am using the default cluster policy: "evenly_distributed" I am wondering how that applies? When i add new vm:s should'nt they be distributed according to the resources used on them? Should they not be live migrated automatically? For me it seems that all vm:s is started on one of the hosts and stays there? Is there something i am missing here? Thanks! Christian