<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Does a CAS array require a load balancing ...
Not true, you only need 2 if you are using an external load balancer as you can have all roles on each Exchange server. This is how we do it (well, we have a third server with all roles at our DR site ...