Re: Failover when primary Unity is a domain controller
You are correct - having Unity also be teh domain controller in a failover situation is not a good idea since if it goes down the backup Unity server wont have DC access (assuming it was using the other Unity box as a DC).
There _are_ sites that have both their primary and secondary Unity servers both act as domain controllers on their own such that when one goes down the other isn't affected. This is ok insofar as it goes but in general it's not a good idea to have Unity acting as it's own domain controller if you can help it since the overhead involved in that is something to be avoided. There's nothing that would stop this from working, however... if it were me I'd have the DC/GC on a seperate server - apart from both Unity servers.
IntroductionCUCM Routing RulesDial String implementation PolicyCUCM Routing LogicSIP URI Call Routing Analysis+++ Case Study: 1 ++++++ Case Study: 2 +++Conclusion
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