In this chapter, we discussed the various high-availability features of hosts and virtual machines available in Red Hat Enterprise Virtualization in detail. This includes the live and cold migration of virtual machines, automatic migration and setting up migration priority for virtual machines, host resilience policy, and finally, defining various cluster policies, such as even distribution and power saving, to distribute virtual workloads for better performance and to save power.

In the next chapter, we will discuss advanced storage options such as using sharing disks for high-availability cluster applications inside guest operating systems running on RHEV, attaching direct storage LUN mapping to a virtual machine for I/O-intensive database workloads, moving virtual machines across different storage domains, and finally, shaping network traffic using the VNIC profile for guest operating systems and hot plugs of network adapter and memory to virtual machines.