I won't have shared storage for these two servers. These servers will be
firewalls, so IP's and a script to install the iptable rules will be all that float between the servers. I started thinking about VMs, though. I'm not familiar with how the HA software works with virtual machines, but was wondering if putting the individual servers on separate hosts as VMs would provide me with fencing.
An odd choice of server for an HA environment wouldn't you say? That unit is nothing more than a desktop, it really doesn't have redundant anything...
Anyways, you can also use an snmp agent to down a switch port(s) that the server is attached to, I wrote one in the early 5.x days and it worked well. The cluster wiki had good docs. But that assumes you have a managed switch behind it.
jlc