Evicted your Exchange cluster node?

Jim McBee recounts a recent experience with this, and how forgetting to do a “setup /reinstall” on the cluster node led to Exchange thinking it was a beta/evaluation version of Exchange.

Excellent point to make: if you ever evict one of the (Exchange binary) nodes from the Exchange cluster, make sure you either reload the whole OS from scratch — including Exchange binaries — or, simply be sure to do “Setup /Reinstall” against the node after it’s been joined back to the cluster. When you evict the node with Exchange still on it, Exchange gets broken. The way to fix it is to force Exchange to run back through its setup.