About a week ago I applied rollup 8 to my Exchange 2007 servers. I have two that are HT, CAS and public folders servers and my mailbox servers are in a CCR active\passive cluster.
I applied RU8 to the HT/CAS servers and rebooted them. Then I applied it to the passive node and rebooted it. I then failed over from ndoe1, applied the rollup to node1, rebooted and failed back.
Everything is online and email is flowing just fine, but, ever since the rollup my replayqueuelength and copyqueuelength go into the hundreds during the day.
Did I miss a step in the rollup install or is this simply a coincidence? If its a coincidence its a pretty big one I think.