A key component in a number of highly available Exchange 2013 implementations is multisite availability with geo load balancing.
Building Exchange to work across more than one data center mitigates the major business risk that comes with keeping Exchange Server on-premises — the loss of a data center or site due to a power issue, a networking issue or something worse.
When end users are regionally homed or when a data center is in a specificdisaster recovery facility, it might not be desirable to allow end users to connect to just any data center. Instead, the IT organization should connect them to their closest data center with geo load balancer technology. This also means using a single mail server HTTPS address across all data centers. We’ll look at what’s involved in simplifying how to publish Exchange and allowing it to cleanly fail-over to a backup data center with no administrator intervention.
In this two-part article I explain more about why and how to implement simple geo-load balancing using the new KEMP Free Load Balancer.