I have 2 x Exchange 2010 CAS/HT servers installed as part of a migration from 2003-2010. One server is a Blade and the other is virtual.
I configured a CAS Array with NLB as detailed in the following site http://exchangeserverpro.com/how-to-install-an-exchange-server-2010-client-access-server-array
and both nodes converged successfully. So far so good. I also configured my Outlook 2003 profile to connect to the CAS Array and received a few test emails.
The issue I'm having is that if I stop one of the nodes (assuming it's the one my Outlook is connecting to) to test the fail-over aspect of having a CAS array, Outlook loses connectivity to the Exchange server and stops receiving mail? If I restart Outlook it won't open at all until the node comes back online. Stopping the second node (the one the CAS array hasn't connected me to) has no effect and my Outlook stays up.
Is this some configuration issue that I've missed or have I not understood something about the fail-over capabilities of a CAS Array? If a node goes down will those PCs connected to that node lose connection until it's back up or are they supposed to fail-over to the other node?
I've scoured the web and can't find anything definitive so any help would be appreciated. Thanks.