KVM

Kernel-based Virtual Machine

KVMGuest

VCS agent for managing virtual machines in a KVM or RHEV environment.

VM, KVM guest

Virtual machine, also referred to as a KVM virtualized guest.

Host

The physical host on which KVM is installed.

PM

The physical machine running VCS.

VM-VM

VCS-supported configuration in which a cluster is formed between VM guests running inside of the same or different hosts.

VM-PM

VCS-supported configuration in which a cluster is formed between VM guests and physical machines.

PM-PM

VCS-supported configuration in which a cluster is formed between hosts, and which is mainly used to manage VM guests running inside them.

Bridge

A device bound to a physical network interface on the host which enables any number of VM guests to connect to the local network on the host. It is mapped to a physical NIC which acts as a switch to VM guests.

VirtIO

VirtIO is an abstraction layer for paravirtualized hypervisors in Kernel-based Virtual Machine (VM) technology.