Re: Shutting down the wrong server
The rack ears remain uncovered by the bezel, so label them there.
If you aren't in a dense, shared-hosting environment, you really don't need the bezels at all.
Those massive swiss-cheese bezel are a thing of the ancient past. They seriously restricted airflow and were named and shamed by Google as to why they build their own servers.
Dell has been nice enough to provide an LCD on their servers for a couple decades now, which you can use to show the hostname, or any custom string.
Still, with the XD servers, there is NO SPACE on the front of the server that isn't a hard drive sled, so you're back to labels on the ears. They even had to put the VGA and USB ports on the ears, they have zero other space to work with.