Re: Probably my fault for being unclear
Talking about Beowulf clusters.... A several of years ago I was at a customer site in a big UK company which may or may not build jet engines.
Stood at the console of said machine, I wanted to reboot one of the servers in the cluster. I was telnetted into one of the servers in the cluster and wanted to reboot it. I go ahead and press the Vulcan Death Grip - ctrl-alt-del. Only the whole shooting match went down, not the server I was logged into. Cue red face from me. But they were very good about it.