The Virtual LoadMaster is a version of the LoadMaster that runs as a virtual machine within a hypervisor and can provide all the features and functions of a hardware-based LoadMaster.

This document describes the installation of the Virtual LoadMaster (VLM) within a Xen, fully-virtualized environment.

The VLM has been tested with Xen.org versions 3.1, 4.0 and 4.1.

There are several versions of the Xen software and not all are officially supported by Progress Kemp:

  • Progress Kemp supports the version available from xenproject.org (note that the URL xen.org redirects to this website)
  • Progress Kemp does not support the version available from xenserver.org

When deploying the LoadMaster, ensure you are using the version of Xen available from xenproject.org.

There are several different versions of the VLM available. Full details of the currently supported versions are available on our website: www.kemptechnologies.com.

The Xen virtual machine guest environment for the VLM, at minimum, must include:

  • 2 x virtual processors
  • 4 GB RAM
  • 16 GB virtual hard disk capacity (sparse where possible)

Full virtualization provides total abstraction of the underlying physical system. No modification of the guest OS or application is required. The guest OS or applications do not realize they are in a virtual environment.

Note: In tests, the Xen para-virtualized VLM had much better performance levels than the Xen fully-virtualized VLM

There may be maximum configuration limits imposed by Xen such as maximum RAM per VM, Virtual NICs per VM etc. For further details regarding the configuration limits imposed by Xen, please refer to the relevant Xen documentation.

A wide variety of Linux distributions can be used as the Dom0 operating system. For a full list of the compatible Linux distributions, please refer to xenproject.org.

LoadMaster has been tested with the following Dom0 operating systems and versions of Xen.org.

Dom0 OS

Xen.org Version

OpenSUSE 12.1

3.1

OpenSUSE 11.4

4.0.2

Debian 6.0

4.1

CentOS 6.3

4.1

If you have any issues with the Virtual LoadMaster when using a different combination of Xen.org versions and Linux distributions as the Dom0, then please contact Progress Kemp Support.