We may be late to the game here, but we have finally figured out what has been causing some of our nighttime run failures. When a VM server is backed up it becomes unavailable for a short period of time, which can cause production failures to occur.
So I have set up a UC4 quiet time for these backups where I close all the queues and open them later.
The next challenge is when I close the queues, how do I know if there is anything still running? I could write an SQLI variable to query for activity, but is there a scripting method available to accomplish the same thing?