I haven't had much time to continue work on FreePanel, but the Perl modules I've written have proven to be useful in cluster management. Take a look at the following diagram as an example scenario:

There's two key points to take away from that diagram.

• physical servers are load balanced using a single VIP (Virtual IP)
• the servers share access to a single storage mount

What's been keeping me busy? Well I've been working for a managed hosting company (DataPipe) and that has been the biggest source of time suck for me. Outside of that I've been working on some Perl modules to make administrating load balanced servers as easy as possible. For now, read the source if you want to know more:

FreePanel