http://blogs.technet.com/b/johnbaker/archive/2005/08/28/409915.aspxQuestion 1: Does the Witness only monitor the SQL servers or does it handle any transactions? Answer 1: From the link below: “The witness server assists the principal or mirror in forming a quorum. If a witness server is present,en-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)http://blogs.technet.com/b/johnbaker/archive/2005/08/28/409915.aspx#3199318Mon, 09 Feb 2009 18:07:37 GMTd5e57398-b9ef-4490-9955-07cbb4e4a80d:3199318Rubén Ortiz<p>Hi</p> <p>I don't understand something. Each server (principal, mirror, witness) has a unique public IP. So in case of crash of principal, with automatic failover, mirror takes control, but IP is different, so we assume that we need to change all IPs of our applications website?</p> <p>Thanks!</p><div style="clear:both;"></div><img src="http://blogs.technet.com/aggbug.aspx?PostID=3199318" width="1" height="1">