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Mainframe Virtualization wins in the end

Once CIOs are willing to follow this line of reasoning, consolidating resources on a mainframe is a logical next step. Mainframe virtualization is rock solid, operationally efficient, and well understood. Intel server virtualization, on the other hand, remains a work in progress. When CIOs take the time to "do the math" they will find that the ROI on moving 20 old Sun systems to Linux-based mainframe VMs is a lot higher than creating 100 virtual Intel server partitions on 10 physical boxes.

IBM gets this value and has 30-plus years of experience in marketing mainframe virtualization. Beyond vision alone, IBM also has tons of charts, graphs, and customer-use cases illustrating TCO and ROI benefits, that extend from rationalizing hardware assets to reducing the corporate carbon footprint. Of course, most users are embracing VMware for Windows consolidation, something that the zSeries system can't do today. True, but IBM can still roll a blade server in (for Windows virtualization) next to the mainframe (for Linux virtualization) and manage the whole ball of wax through Tivoli operations-management tools. The mainframe still wins.


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