Ramblings from another nerd on the grid
A failover cluster is a group of independent computers that work together to increase the availability of applications and services. The clustered servers (called nodes) are connected by physical cables and by software. If one of the cluster nodes fails, another node begins to provide service (a process known as failover). Users experience a minimum of disruptions in service.
This guide describes the steps for installing and configuring a print server failover cluster that has two nodes. By creating the configuration in this guide, you can learn about failover clusters and familiarize yourself with the Failover Cluster Management snap-in interface in Windows Server® 2008 Enterprise or Windows Server® 2008 Datacenter.
Go get it @ http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=209c50c9-04a5-4fda-88ae-430c1e2abafe.