I decided to change some of my infrastructure back to KVM again, and the overall experience has been quite good in Fedora 22. Using libvirt with KVM is a breeze and the virt-manager tools make it even easier. However, I ran into some problems while trying to migrate virtual machines from one server to another. The error # virsh migrate –live –copy-storage-all bastion qemu+ssh://root@ error: internal error: unable to execute QEMU command 'drive-mirror': Failed to connect socket: Connection timed out That error message wasn’t terribly helpful.