Description of problem: Today, Restore operation can be done only via the old flow, via otopi (See documentation [1]). Thus, Node Zero should support this procedure as well [1]: https://www.ovirt.org/documentation/self-hosted/chap-Backing_up_and_Restoring_an_EL-Based_Self-Hosted_Environment/
*** This bug has been marked as a duplicate of bug 1469908 ***