KVM virsh backup.

rpm -qa | grep qemu
qemu-kvm-tools-1.5.3-126.el7.x86_64
centos-release-qemu-ev-1.0-1.el7.noarch
qemu-img-ev-2.6.0-27.1.el7.x86_64
qemu-kvm-ev-2.6.0-27.1.el7.x86_64
qemu-guest-agent-2.5.0-3.el7.x86_64
qemu-kvm-common-ev-2.6.0-27.1.el7.x86_64
ipxe-roms-qemu-20160127-5.git6366fa7a.el7.noarch
libvirt-daemon-driver-qemu-1.2.17-13.el7_2.5.x86_64

Начат процесс запуска юнита session-53722.scope.
июн 23 14:30:01 ferma-serv-02 CROND[12344]: (root) CMD (/usr/lib64/sa/sa1 1 1)
июн 23 14:35:33 ferma-serv-02 polkitd[1083]: Registered Authentication Agent for unix-process:12415:2728726074 (system bus name :1.109947 [/usr/bin/pkttyagent --notify-fd 5 --fallback], object path /org/freede
июн 23 14:37:03 ferma-serv-02 polkitd[1083]: Unregistered Authentication Agent for unix-process:12415:2728726074 (system bus name :1.109947, object path /org/freedesktop/PolicyKit1/AuthenticationAgent, locale 
июн 23 14:37:03 ferma-serv-02 systemd[1]: Job dev-virtio\x2dports-org.qemu.guest_agent.0.device/start timed out.
июн 23 14:37:03 ferma-serv-02 systemd[1]: Timed out waiting for device dev-virtio\x2dports-org.qemu.guest_agent.0.device.
-- Subject: Ошибка юнита dev-virtio\x2dports-org.qemu.guest_agent.0.device
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel