Re: Am I the only one
"You could cram the racks closer together if you didn't need to fit humans in between them to replace faulty hardware."
Now there's an idea. Ever seen document archive shelving like the stuff in the picture at http://www.mobileshelving.org.uk/ ? The racks of shelves run along a track which is a bit longer than the space the shelves need when they're closed up. You just roll them apart when you need to access a given shelf. To do this with servers you'd need to be able to provide enough wiggle room in the cabling. I don't know if anybody's tried this with servers - posted here as prior art just in case there's an attempt to patent it later.