(sorry for double posting, Chad did not Cc Sharon and I don't know whether Sharon is registred to the ML or not)
About "advisors to check backend servers": To complete Chad's answer, you may also have a look at this page: http://haproxy.com/doc/aloha/7.5/haproxy/healthchecks.html It applies to our appliance, but also to our Community edition (or Enterprise one). Baptiste
