See: "http://linuxtoday.com/news_story.php3?ltsn=2002-02-20-012-20-NW-HE-SV"
"Senior IT executives are looking to solve problems beyond simply maintaining legacy applications, says Giga Information Group analyst David Mastrobattista. Many believe that the IBM zSeries 900 can reduce their total cost-of-ownership through server farm consolidation even as it ushers in the next wave of Linux-based enterprise computing. "IBM was the big winner because they already had the technology in place and were able to deliver in quantity," he says. Indeed, IBM has sold over 1,000 of its zSeries 900 --each worth well over $1 million-- since the product's rollout last year. The company has seen five consecutive quarters of double-digit growth in mainframe sales. Even more surprising than the number of MIPS (millions of instructions per second) shipped, says Mastrobattista, is the fact that 60-65 percent of them were for non-traditional workloads such as Linux-based server farm consolidation and large-scale e-mail and messaging deployments."