Making Best Use of Data Center Space: Density Vs. Isolation

jfruh writes The ability to cram multiple virtual servers on a single physical computer is tempting — so tempting that many shops overlook the downsides of having so many important systems subject to a single point of physical failure. But how can you isolate your servers physically but still take up less room? Matthew Mobrea takes a look at the options, including new server platforms that offer what he calls "dense isolation."