4.4. Red Hat Virtualization 4.2 Batch Update 3 (ovirt-4.2.6)

This release of Red Hat Virtualization features the following enhancements:

BZ#1134318

In the current release, it is possible to create single-brick Gluster volumes so that local storage can be used as a storage domain, along with shared storage, in shared data centers.

BZ#1295041

Previously, the engine-setup tool did not support host names that only resolved to an IPv6 address. In this release, the engine-setup tool supports host names that only resolve to an IPv6 address.

BZ#1297037

Previously, it was not possible to send an non-maskable interrupt (NMI) to a non-responsive guest operating system. In this release, users can send an NMI with Cockpit. A new menu option called "Send Non-Maskable Interrupt" was added to the "Shut Down" menu that is available from the Virtual Machines tab. It sends a command to the required virtual machine, and it is sent regardless of the virtual machine's state and without checking the type of operating system or its settings. In the event of an operating system that is not installed or configured correctly, no action will be taken.

BZ#1360839

Previously, it was only possible to attach a network to a host with an ipv6 address using either autoconf or dhcpv6. The two were mutually exclusive. In the current release, it is possible to enable both modes simultaneously using the Administration Portal or the REST API.

BZ#1558847

Previously, if a host's network definitions became unsynchronized with the definitions on the Manager, there was no way to synchronize all unsynchronized hosts on the cluster level. In this release, a new Sync All Networks button has been added to the Cluster screen in the Administration Portal that enables users to synchronize all unsynchronized hosts with the definitions defined on the Manager.

BZ#1565541

Previously, it was not possible to define long network names when modifying the tunnelling network for OVN controllers. In this release, a script has been provided to enable long network names to be used for tunnelling network definitions.

BZ#1590266

Previously, self-hosted engine deployment failed with an unclear message if the Manager virtual machine could not be reached by its IP address. In this release, a clear message is provided when deployment fails for this reason.

BZ#1607127

The current release always uses the latest Ansible inventory file, so that a particular Openshift version no longer needs to be specified and the documentation is always up to date.

BZ#1608467

Self-hosted engine deployment fails if firewalld is masked on the host. This is now checked earlier in the deployment script.

BZ#1613193

This release provides a shutdown/startup Ansible role for Red Hat Virtualization and Red Hat Hyperconverged Infrastructure environments.

BZ#1617977

VDO savings are displayed as part of the brick properties in the Administration Portal. This feature allows administrators to see the actual space savings resulting from VDO duplication and compression.

BZ#1618650

Previously, it was not possible to force a virtual machine to power off from the VM Portal. In this release, it is now possible to force a virtual machine to power off from the VM Portal.

BZ#1622700

Previously, multipath repeatedly logged irrelevant errors for local devices. In this release, local devices are blacklisted and irrelevant errors are no longer logged.

BZ#1624923

Memory hotplugging is now available for ppc64le virtual machines.

The items listed in this section are provided as Technology Previews. For further information on the scope of Technology Preview status, and the associated support implications, refer to https://access.redhat.com/support/offerings/techpreview/.

BZ#1109597

This release allows the creation of single-brick Gluster volumes to enable local storage to be used as a storage domain for shared data centers. As a result, both local storage and shared storage can be used. This feature is a Tech Preview.

This section outlines important details about the release, including recommended practices and notable changes to Red Hat Virtualization. You must take this information into account to ensure the best possible outcomes for your deployment.

BZ#1619686

The Red Hat Virtualization Manager is a JBoss Application Server application that requires Red Hat JBoss Enterprise Application Platform (JBoss EAP) 7.1 be installed on the Red Hat Virtualization Manager host. For more information, see the following sections in the Red Hat Virtualization 4.2 Installation Guide: "Enabling the Red Hat Virtualization Manager Repositories" and "Configuring a Local Repository for Offline Red Hat Virtualization Manager Installation".