Howdy,
We're experimenting with ways we can get out monthly patching to complete quicker on our Hyper-V clusters. Currently it sometimes takes up to 90 minutes to patch a 3 node cluster because of waiting for each server to install the patches and waiting for all the VMs to migrate around.
We had an idea that maybe we could manually install the Windows Updates ahead of time but NOT reboot the servers. Then we could run CAU which would see that the patches were already installed and there was a pending reboot. Then all it would have to do is migrate the VMs, reboot, and move onto the next one.
However, we tested this yesterday and it didn't work as we hoped it would. CAU saw that each server didn't need any patches to be installed but it also didn't see that each server had a pending reboot, so it just marked all the hosts as Succeeded without doing anything.
Is there any way that we could make this work by changing a flag or something so CAU would see the pending reboots and do them? Or, does anyone else have ideas of speeding up patching in general of things that can be done ahead of time?