These two features have been brought up serveral times to me. Escalation, email admin on call first, if no up alert occurs email admin2 and admin3, or if I can for example between 8am-6pm email Bob, and 6pm-8am email Jim an alert.
Secondly is a master/slave server system. I have one big machine which holds the main database, and several slaves which write to the master (similiar to how DNS operates). Does Hyperic currently support a master/slave setup?, as the question was raised in a meeting concerning hyperic.