- Policies for Guest Clusters
- Policies for VMs Highly Available Resources
Red Hat Enterprise Linux (RHEL) High Availability and Resilient Storage clusters may be deployed within virtual machines running on various virtualization platforms, and may also manage and maintain high availability of certain types of virtual machines running as resources. This document describes the virtualization platforms that are supported by Red Hat for use in these contexts.
- Red Hat Enterprise Linux (RHEL) 6 or 7 with the High Availability Add-On
- A cluster deployment in which the targeted use case is to either:
- Manage one or more virtual machines as a highly available resource, or
- Operate one or more virtual machines as a node in the cluster.
Useful References and Guides
- Support Policies for RHEL High Availability Clusters
- Official product documentation regarding RHEL, Virtualization, and High Availability
High Availability and Virtualization Use Cases
There are two use cases for deployment of virtualization in conjunction with the RHEL High Availability or Resilient Storage Add-On: VMs as highly available resources and guest clusters.
Policies for Guest Clusters
RHEL KVM with libvirt
The following KVM/
libvirt virtual machine configurations are supported by Red Hat for use as High Availability cluster nodes:
|Hypervisor OS||VM OS||Supported Fencing Mechanisms|
|RHEL 6 or 7||RHEL 6 or 7||
- Physical Host Mixing is supported in clusters with member nodes that run on the supported KVM/
libvirtvirtualization platforms listed above.
Red Hat Enterprise Virtualization (RHEV)
Consult the following policies applicable to RHEV virtual machines:
Red Hat does not support the RHEL High Availability or Resilient Storage Add Ons running within Openstack VMs. This is true for Red Hat Openstack Platform (RH-OSP) and for other Openstack deployments.
VMware vSphere / ESXi
Consult the following policies applicable to VMware platforms:
IBM z Systems
Please contact Red Hat Support or your account representatives for information on running RHEL High Availability on IBM z Systems.
Red Hat does not support the RHEL High Availability or Resilient Storage Add Ons on the Hyper-V platform.
Amazon EC2, Microsoft Azure, or Other Hosted Cloud Providers
Red Hat does not support the RHEL High Availability or Resilient Storage Add Ons on these hosted cloud platforms.
Red Hat does not support the RHEL High Availability or Resilient Storage Add Ons on Xen platforms.
Policies for VMs as Highly Available Resources
The following VM configurations are supported as Highly Available resources managed by a RHEL High Availability cluster. Other virtual machine types or configurations may function, but Red Hat cannot guarantee they will be free from issues and may be unable to assist in the event of any issues arising.
|Hypervisor Type||Guest OS Type|
|RHEL 6 or RHEL 7
||Any guest OS fully supported by libvirt/KVM|
- In these configurations, the VM resources would be stored on shared block devices such as clustered LVM Volumes, or on disk images stored on shared file systems such as NFS, GFS, GFS2.