I see that this was apparently a bug in previous version, but I'm currently using oVirt Node 4.3.3.1. This was working fine before updating from oVirt Node 4.2. This occurs when trying to change the CD on a running VM. Log shows: 2019-05-03 12:09:24,731-04 ERROR [org.ovirt.engine.core.bll.storage.disk.ChangeDiskCommand] (default task-52) [309a3a99-c754-45d5-add7-c45e094d2e69] Command 'org.ovirt.engine.core.bll.storage.disk.ChangeDiskCommand' failed: EngineException: org.ovirt.engine.core.vdsbroker.vdsbroker.VDSErrorException: VDSGenericException: VDSErrorException: Failed to ChangeDiskVDS, error = Drive image file could not be found, code = 13 (Failed with error imageErr and code 13) Any advice on how to solve this Current configuration: OS Version : RHEL - 7 - 6.1810.2.el7.centos OS Description : oVirt Node 4.3.3.1 Kernel Version : 3.10.0 - 957.10.1.el7.x86_64 KVM Version : 2.12.0 - 18.el7_6.3.1 LIBVIRT Version : libvirt-4.5.0-10.el7_6.6 VDSM Version : vdsm-4.30.13-1.el7