Unity MWI in Exchange HA Cluster

[alan-white]

We are running Unity 4.2 connecting to a backend exchange 2003 cluster. Anytime there is a failover on the cluster, Unity MWI's freak out and no longer work. No errors occur in Unity and the only apparent way to re-synch is with a reboot.

Any ideas??

[e.huntley]

Go on both your servers under the tools depot and run DBWalker on both servers. It may say you have an invalid switch id or something like that. Essentially, the databases are different. But I have seen it before where the switch id did not match on both servers.