Hi All, I have noticed that there is a huge difference between memory reading obtained from top or free commands, and values displayed on ovirt engine. "Host " Example: Engine Version : *ovirt-engine-3.4.3-1.el6.noarch* *OS: Centos 6.5_x86_64* *Used Memory:* *from free:* [root@oVirt ~]# free total used free shared buffers cached Mem: 65890412 65609864 280548 0 305408 53759412 from Egnine Webpage: only 12G is being used. Is there an explanation for this ? Please note this is the same on all previous version, the values matches only after restart of the host then free memory start to vanish by time ! Thanks, Mohyedeen.