Product : Red Hat, RHEV/3.5, All
Feature : Application/Service HA, HA/DR, VM Mobility and HA
Content Owner:  Roman Macek
Summary
No (yes with Symantec Storage Foundation - Fee-Based Add-On)
Details
There is no natively provided Site Failover capability in RHV.
You can e.g. use Symantec Storage Foundation to mitigate this.

Since RHV 3.2 Red Hat supports a third-party plug-in framework, enabling third parties to integrate new features and actions directly into the RHV Manager user interface.
RHV-M 3.5 fully supports a Symantec Storage Foundation plug-in that provides disaster recovery in case of a failure.

Symantec Storage Foundation offers push button disaster recovery orchestration and features completely automated failover of a Red Hat Virtualization environment over to a disaster recovery site. This includes guests, guest network reconfiguration, and storage reconfiguration. It is designed to provide high availability and disaster recovery for databases, custom applications, and complete multi-tiered applications across physical and virtual environments over any distance.