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Chapter 6. Introduction to Hypervisor Hosts

Red Hat Enterprise Virtualization supports three types of hypervisor hosts: Red Hat Enterprise Virtualization Hypervisor (RHEV-H), Red Hat Virtualization Host (RHVH), and Red Hat Enterprise Linux host (RHEL-based hypervisor). You can use any combination of hypervisor types in your Red Hat Enterprise Virtualization environment.

Important

In new Red Hat Enterprise Virtualization 3.6 environments, Red Hat recommends installing RHVH 3.6 because it provides an upgrade path to the most recent version of Red Hat Virtualization through the Manager. Installations that use RHEV-H require a full reinstall of the hypervisors to upgrade to the most recent version of Red Hat Virtualization. See Section 8.1, “Installing Red Hat Virtualization Host” for more information.
For more information about upgrading with RHEV-H, see Upgrading to Red Hat Enterprise Virtualization 3.6 in the Upgrade Guide. RHEV-H installations should be converted to RHVH 3.6 as part of the upgrade.
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Table 6.1. Hypervisor Hosts
Host Type Other Names Description
Red Hat Enterprise Virtualization Hypervisor
RHEV-H, thin host
This is a minimal operating system based on Red Hat Enterprise Linux 7. It is distributed as an ISO file and is a closed system. Filesystem access and root access are limited. Yum is disabled.
This download is available on the Customer Portal and is named RHEV-H Image.
Red Hat Virtualization Host
RHVH, thin host, Next Generation RHVH
Like RHEV-H, this is a minimal operating system based on Red Hat Enterprise Linux 7. It is distributed as an ISO file from the Customer Portal and contains only the packages required for the machine to act as a host. This is the latest thin host available for Red Hat Enterprise Virtualization. Yum is enabled.
This download is available on the Customer Portal and is named Next Generation RHV-H Image.
Red Hat Enterprise Linux Host
RHEL-based hypervisor, thick host
Red Hat Enterprise Linux hosts subscribed to the appropriate channels can be used as hypervisor hosts. It provides you the full access to the operating system.

Important

Red Hat recommends that you install at least two hypervisor hosts in the Red Hat Enterprise Virtualization environment, otherwise you will be unable to access features such as migration and high availability.
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