Hi, evenly distributed takes only the CPU load into account (memory was added in 3.6). If most of the VMs are doing nothing there is no key to use for balancing. Also we only start automatic balancing once the overload threshold is reached (80% load by default) on a host. And we move VMs from overloaded to underloaded hosts. The picture in the following link might explain that a bit although we created it for the memory case, the CPU based loading obeys the same rules. http://www.ovirt.org/Features/Sla/MemoryBasedBalancing Best regards Martin Sivak oVirt / SLA On Mon, Jan 11, 2016 at 4:12 PM, gflwqs gflwqs <gflwqs(a)gmail.com&gt; wrote: