Again, from HPCwire
IBM introduced … an entirely new category of server uniquely designed to address the technology needs of companies that use Web 2.0-style computing to operate massive datacenters with tens of thousands of servers.
The system is called, oddly, iDataPlex, and has these features
More than doubles the number of systems that can run in a single IBM rack.
Uses 40 percent less power while increasing the amount of computing that can be done 5X, (2).
Can be outfitted with a liquid cooled wall on the back of the system that enables it to run at “room temperature” — no air conditioning required.
Uses all industry standard components as well as open source software such as Linux to help lower costs.