Look up "database mirroring [SQL Server], monitoring" in Books Online for the basic stuff. Buy my book and/or read my blog for the advanced stuff.
My blog: SQL Soldier[/url] SQL Server Best Practices: SQL Server Best Practices Twitter: @SQLSoldier My book: Pro SQL Server 2008 Mirroring[/url] Microsoft Certified Master: SQL Server, Data Platform MVP Database Engineer at BlueMountain Capital Management[/url]