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ZDNet: Evolution of the Data Center OS

Jan 16, 2003, 22:00 (14 Talkback[s])
(Other stories by Rob Schafer)

[ Thanks to Jason Greenwood for this link. ]

"During the next five to 10 years, tight budgets, better utilization, and more effective demand management will slow server growth and drive a dramatic shift in the data center's operating system capacity mix. Windows and Linux will be the big winners.

"Meta Group's research indicates that the average data center's net annual server capacity growth is slowing from the historical 45 to 50 percent compound annual growth rate (CAGR) to a more sustainable long term 35 to 40 percent. The primary drivers for this deceleration are near-term budget constraints, improving server utilization (via more efficient workload management tools), and more effective demand management. More interesting is Meta's projected dramatic change in the data center's operating system capacity mix. Although Meta believes proprietary Unix will maintain its current dominance through 2007 (declining from 45 to 40 percent share), it will be challenged by Windows--which Meta projects will grow from 20 to 38 percent--and Linux, which will grow fastest off an initially small base (from 3 to 11 percent). Constrained by prohibitive cost-of-ownership comparisons, IBM's z/OS-based mainframe platform will continue its relatively slow 14 percent growth rate, shrinking its data center capacity share from 32 to 11 percent by 2007. By 2012, our research indicates that Windows will dominate data center computing with 51 percent, Linux at 26 percent, proprietary Unix at 20 percent, and z/OS at 3 percent..."

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