I've lost track of the number of clusters that I have implemented or supported over the last few years. With each edition of Windows server that comes out clustering has improved. It was a bit of a dark art with Windows 2000 and in Windows 2008 it's pretty much all point and click (and not many clicks at that). Most clusters that I encounter at the moment are still 2003. In a lot of organisations the joys of 2008 are still to come. Clustering in 2003 offers few built in options for notifying anybody that a resource group has moved…