Hi folks! So with the release of Exchange 2013, do you still need load balancers?
Absolutely! CAS servers can only do so much for you and if you’re in a geographically disparate setup, you’ll definitely want to take advantage of load balancers. Even if you’re not, layer 7 load balancers can load balance on many metrics that Exchange can’t do natively with it’s CAS servers.
I highly recommend the use of load balancers in highly available and high performance environments. If you’re in a small business, the argument can be made to forgo the load balancers, but if not, I suggest you take a look at the offerings out there.