Installing and configuring Cluster Server for Red Hat Enterprise Virtualization (RHEV) virtual-to-virtual clustering

Red Hat Enterprise Virtualization (RHEV) is a server virtualization solution that uses a KVM hypervisor. As KVM forms a core part of the Linux kernel, this virtualization is highly efficient in Linux environments. Platform management infrastructure and application-specific agents, and other tools are the other components of a RHEV setup.

To enable VCS support for in-guest clustering, before you install VCS on the guest virtual machines, you must set up a private network between them. This involves the following steps:

To create a network on the physical host

  1. From RHEV Manager, create two new logical networks for private LLT heartbeat communication.
  2. Assign appropriate physical interfaces to the newly-created logical networks.

To configure a logical network for virtual machines

  1. Create two network interfaces, of IntelPro 'e1000' type, and associate them with the newly-created logical networks.
  2. Repeat step 1 for each virtual machine where you want to monitor application availability with VCS.

To set up a cluster of virtual (guest) machines with Cluster Server (VCS), perform the following procedures:

Note:

The installation and configuration of VCS inside a virtual machine is similar to that of the physical system. No additional VCS configuration is required to make it work inside the virtual machine.

For more details, see the Cluster Server Administrator's Guide.

Fencing support for VCS in-guest clusters

VCS supports SCSI3, non-SCSI3, CP server-based fencing in virtual machines to prevent corruption of data disks.

For information on configuring fencing, see the Cluster Server Configuration and Upgrade Guide.

Live migration support

VCS in-guest clustering continues to provide high availability of applications on virtual machines, in live migration scenarios initiated by the virtualization technology.

Veritas has tested for live migration support in the RHEV environment under the following conditions: