On 01/04/2013 06:24 PM, Lorin Hochstein wrote: > Dave: > > The nova account needs to be able to do passwordless (i.e., key-based) ssh between nodes so it can copy files across nodes for migrations and resizes. > > This is documented in the Xen section of the admin guide (http://docs.openstack.org/folsom/openstack-compute/admin/content/introduction-to-xen.html), but I'm pretty sure it applies to KVM as well, I'll file a doc bug about it. You could reference/copy info from: https://fedoraproject.org/wiki/Getting_started_with_OpenStack_EPEL#Migrate_and_Resize