Does anyone have an article, link, blog, or thoughts on setting up SQL Server 2008 R2 clustering with multiple instances? Preferably active-active. No need to point to the normal 2-node cluster with a single instance examples. Initally we are looking at a 2 or 3 node cluster with 6-7 instances. We are not able to go to SQL Server 2012 so please refrain from breaking my heart with any notes on that.