Red Hat Enterprise Virtualization: High Availability
Source: Red Hat
Red Hat Enterprise Virtualization includes High Availability, which provides the foundation for building a highly available virtual infrastructure. Red Hat Enterprise Virtualization High Availability continually monitors the physical host systems. In the event of a hardware failure, any virtual machine configured to be "Highly Available" will be restarted on another host in the cluster. As well as monitoring physical hosts, each virtual machine is monitored. If a virtual machine failure is detected, it will be automatically restarted on the same host system.