Chapter 2. RHEV for IBM Power

With the Red Hat Enterprise Virtualization 3.4.3 release, you can now install a RHEL-based Hypervisor on IBM Power 8 hardware for your Red Hat Enterprise Virtualization environment. For more information on installation, see
Unsupported Features
The following Red Hat Enterprise Virtualization features are not supported:
  • Hot-Plug CPU
  • Spice display
  • SmartCard
  • Memory Balloon
  • Sound device
  • Watchdog
  • Guest SSO
  • OpenStack Neutron integration
  • Self-Hosted Engine
Known Issues with workarounds
Hotplug or unplug NIC fails on a running virtual machine.
Workaround: Ensure powerpc-utils is on a version 1.2.19 or higher and is being used in the Red Hat Enterprise Linux guest operating system.
Power Management configuration for fencing and high availability requires additional parameters to be set for it to work for Power hosts
Workaround: In the Administration Portal, go to HostsEditPower Management, select the power management type ipmilan, and add lanplus=1,cipher=1 to the Options field.
iSCSI datacenters may become non-responsive when managing both x86_64 and Power hosts.
Workaround: Configure x86_64 hosts and Power hosts in different datacenters due to potential Sanlock issues.
SELinux booleans needs to be set manually after ISO installation on Power hosts. VDSM does not set SELinux booleans during installation when SELinux is disabled.
Workaround: Users must manually run the following command on a Power host upon the completion of the ISO installation: vdsm-tool sebool-config command.
Known Issues without workarounds
Hotplug or unplug disk is not supported on Power hosts.
CPU pinning does not work for virtual machines running on a Power host.
VNC in text mode is unreadable on Power hosts for Red Hat Enterprise Linux 6 guest operating systems.
Users cannot import virtual machines from an export domain to a Power host.
Users cannot create a new virtual machine from a snapshot on a Power host.
Users will not be able to run Cloud-Init for guest configuration of Red Hat Enterprise Linux 6 or Red Hat Enterprise Linux 7 guest operating systems running on a Power host.