Chapter 1. What changed in this release?

1.1. Major changes in version 1.6

Be aware of the following differences between Red Hat Hyperconverged Infrastructure for Virtualization 1.6 and previous versions:

Ansible-based deployment and management
RHHI for Virtualization now uses Ansible playbooks for all deployment and management tasks. Documentation has been updated accordingly.
Expand volumes across more than 3 nodes
Volumes can now span across 3, 6, 9, or 12 nodes. See Volume Types for support details. See Expanding an existing volume across more hyperconverged nodes for instructions on expanding existing volumes across more nodes.
RHHI for Virtualization sizing tool
Visit the RHHI for Virtualization Sizing Tool, enter your deployment requirements and click Solve to receive an example configuration with suggested nodes, memory, and resource commitments for your deployment.

1.2. Technology previews

Technology Preview features are provided with a limited support scope, as detailed on the Customer Portal: Technology Preview Features Support Scope.

The features listed in this section are provided under Technology Preview support limitations.

IPv6 networking support

Technology Preview support is now available for IPv6 addresses in IPv6-only environments (including DNS and gateway addresses). There are several important limitations to IPv6 support during this Technology Preview:

  • Disaster recovery using geo-replication is not supported (BZ#1688269)
  • An additional mount option is required when mounting storage provided by IPv6 hosts: xlator-option=transport.address-family=inet6 (BZ#1688243)
  • Hosts cannot be automatically added to the RHV Administration Portal (BZ#1688239)

1.3. Proof of Concept technology

Proof of Concept technology is available for use in testing environments.

The technology listed in this section is not supported and not intended for production environments.

OpenShift Container Storage on RHHI for Virtualization
OpenShift Container Storage can now be deployed on top of RHHI for Virtualization to let you create and manage containers and their underlying storage on a small cluster of hyperconverged hosts. The basic deployment structure uses four hyperconverged hosts that provide storage and virtualization capabilities. These hyperconverged nodes host six virtual machines installed with Red Hat OpenShift Container Platform. Contact your Red Hat support representative to access this technology for Proof of Concept testing purposes.

1.4. Deprecations

The following items are considered deprecated or not supported as of Red Hat Hyperconverged Infrastructure for Virtualization 1.6:

Gdeploy is no longer supported
Ansible playbooks are now used for all deployment and management tasks. Gdeploy is therefore no longer supported after upgrading to Red Hat Hyperconverged Infrastructure for Virtualization 1.6.