I have a stack of 4 3750 switches. I wanted to upgrade the IOS and used the "archive download-sw /overwrite /imageonly http://...." command to do so.
After the process had been running a minute or so, I lost a bunch of switches further connected to the stack, and a lot of servers hosted by these switches dropped off the network a few times.
Is this expected behaviour? Is it possible to throttle the CPU usage of the upgrade command.