So we are sitting in this meeting, and one guy goes:
OK, so if this customer as a 100 meg pipe, and your backups kick in at 1AM and flood that pipe while he's surfing, you know he's going to be pretty annoyed when his streamed porno movie stops.
This is a collection of techical information, much of it learned the hard way. Consider it a lab book or a /info directory. I doubt much of it will be of use to anyone else.