Is there a report or utility to run in SCCM 2012 that can show you all maintenance windows in which a particular server is?
We have a few devices in our environment that are taking significant performance hits during business hours, and inevitably when a little research is done we see that multiple updates are being applied. It doesn't seem that the actual *installation* is occurring outside of the maintenance window, but many other operations are. A reboot of the device always clears up the problem. In fact in some instances we have so many updates being downloaded to the device that it takes up all the bandwidth at the particular branch and bogs down all the other clients.
I am somewhat new to System Center but am trying to pick up as much as I can. I've been checking logs like WUAHandler, execmgr, scanagent, ccmexec, but to say that there is a lot of information there is kind of an understatement. I can definitely see that work is being done on these devices outside of what I think the MW hours are. I'm beginning to suspect that maybe I have more than one MW applying to the devices in question, or perhaps I don't have them configured correctly. Any suggestions?
**edit**: I'd like to add that the way I've configured the maintenance windows is to have a device collection (for example, ServerAuto) and then have a SEPARATE collection with the same devices named ServerAuto Maintenance Window, and then set the MW on the second collection. I set it up that way due to a recommendation when we first deployed SCCM. Is this not standard practice?