This tutorial provides step-by-step instructions about how to create a highly available VMware Server environment on a Debian Etch system. With this tutorial, you will be able to create Virtual Machines that will be available on multiple systems with failover/failback capabilities.

The system is based using components of "The High Availability Linux Project" , namely "DRBD" and "Heartbeat".
The free open-source edition of DRBD will only allow a 2-node active/passive environment, so this is not for large businesses!. Also, the heartbeat/drbd setup configured in this tutorial, is by using 2 Ethernet NIC's. I recommend that at least the nic to be used for DRBD replication (eth1 in this tutorial) is 1Gbit or more.

Warning: This tutorial requires at least basic Linux & Networking knowledge and is not for so called "newbies" to Linux and/or Networking and/or Vmware !

There are many ways of achieving this goal but this is the way I take. I do not issue any guarantee that this will work for you!

Check it out, here.