KVM

Kernel-based Virtual Machine.

KVMGuest

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

VM

Virtual machine created in a KVM or RHEV environment.

Host

The physical host on which the virtual machine is created or running.

PM

The physical machine running VCS.

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.

RHEV

Red Hat Enterprise Virtualization.

RHEV-M

Red Hat Enterprise Virtualization Manager is a centralized management web interface for managing the RHEV environment.

RHEL-H

Red Hat Enterprise Linux (RHEL) host that runs a complete version of RHEL, and is managed by RHEV-M.

RHEV-H

Red Hat Enterprise Virtualization - Hypervisor is a minimal installation of Red Hat Enterprise Linux, which supports the creation and operaiton of virtual machines.

VDSM

Virtual Desktop Server Manager. The VDSM service is used by RHEV-M to manage the RHEV-H and RHEL hosts.

REST API

Representational state transfer (REST) API.

Datacenter

A datacenter is a logical entity in a RHEV-M that defines the set of physical and logical resources used in a managed virtual environment such as clusters of hosts, virtual machines, storage and networks.

Cluster

This is a cluster in RHEV-M. A cluster is a collection of physical hosts that share the same storage domains and have the same type of CPU.

Storage Domain

This is the storage infrastructure in RHEV for creating and running virtual machines.

Data Domain

A type of storage domain that holds the disk image of all the virtual machines running in the system, operating system images, and data disks.

ISO Domain

This domain stores ISO files (or logical CDs) used to install and boot operating systems and applications for the virtual machines.