[ovirt-users] Long shot on VM failing to start

We are moving to an oVirt 4.4.9 environment from a 4.3.4.3 environment and have run into a major issue. The method for migration to the new system is to shutdown a VM on the old system, build a new VM on the new system with the same IP/name etc. This has worked for several VMs so far but the latest new build failed and we had to roll back - i.e. start the old VM. The old VM fails to start with the following message in the VMs libvirt qemu log: libvirtd quit during handshake: Input/output error shutting down, reason=failed Any ideas? Regards Simon...