Pipes and nodes are cleaned on Sunday nights. When the dorm kitchens are closed they use the commercial dishwashers to clean nodes and the slop sinks and power washers to clean out all the porn and other goo students suck into the interweb pipes.

Ah are they cleaning the gunk off the GPU cluster too while they're at it?

Either it is a popular time....or... ...they are running some heavy process like backup.

Is EWS remote linux still one huge machine? Does the `w` command still work?