SQL Server Clustering - Detailshttp://msmvps.com/blogs/felix-quevedo/pages/sql-server-clustering.aspxAt a Glance: Running SQL Server on a cluster Hardware and software requirements Clustering one node Cost-effective options A server cluster allows you to connect a number of physical servers—or nodes—that act as failover partners for each other. The redundancyenCommunityServer 2008.5 SP2 (Build: 40407.4157)