Hello, I have a cluster of 2 hosts with f19 and 3.3.1 as delivered in ovirt stable repo. Running kernel is 3.11.8-200.fc19.x86_64 $ rpm -q ksm libvirt qemu-kvm vdsm package ksm is not installed libvirt-1.0.5.7-1.fc19.x86_64 qemu-kvm-1.4.2-13.fc19.x86_64 vdsm-4.13.0-11.fc19.x86_64 Engine is another server, always with f19 and ovirt stable 3.3.1. I have a GlusterFS DC with a cluster composed by these two hosts. They are HP blades BL685c G1 with 64Gb of ram each and 4xOpteron CPUs, seen by oVirt as "AMD Opteron G2" in datacenter. I have 3 VMs in this cluster: 2 x CentOS 6.4 and 1 x CentOS 5.10. After I put all in maintenance and then start up. I have both hosts up and running. I power on in sequence the 3 VMs and they start all on the same host (the one that is not the elected SPM). Should it be some sort of load balancing or is this situation correct/expected? I notice ksm is not installed: could it be this one the reason in any way? Or culd it be useful anyway to install it (I thought it was a dependency for oVirt...) $ rpm -qa|grep ksm [g.cecchi ]$ BTW: if I run a live migration of CentOS 5.10 VM to the other host it works ok without problem, so the host seems ok to me. All 3 VMs are configured as servers and as "run on any host in cluster" Thanks in advance, Gianluca