06-01-2009 09:06 AM
All in all this is very simple. All you need to do is to configure the controller using on of our HA modes – symmetric active-backup (aka SSLB) would be the option of choice from my point of view. One of the SIs is the one with a higher priority and the other one the one with a lower priority. It is like configuring HA for a normal virtual server.
You might want to bind the DNS virtual server to a vrrp instance using vip-groups in case it is a VRRP based HA solution.