I have to install a devstack multinode using 3 nodes configured as follows: 1) Controller on Ubuntu 12.04 LTS 2) Node Compute on Ubuntu 12.04 LTS with KVM hypervisor 3) Node Compute on XenServer While in first two points I am successful, the third point show me the following error when i launch the script ./install_os_domU.sh --- + echo -n 'Starting VM... ' Starting VM... + xe vm-start uuid=e3975dab-c7a5-7490-02c6-988185a2c6f6 There are no suitable hosts to start this VM on. The following table provides per-host reasons for why the VM could not be started: xenserver-antonio : Cannot start here [Not enough free memory] --- Full log is at this address: http://www.forumaltavilla.it/joomla/Documenti/installazione.txt How can I solve this problem? Thank you -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack/attachments/20130128/1ea9ea16/attachment.html>