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Mainframe Hall of Fame: Four New Members Added
August 25, 2010

 We have added the following four new members to MainframeZone’s Mainframe Hall of Fame. The complete roster of all 29 members is available here.

 

Jeff Frey is the lead architect of the zEnterprise system and the Unified Resource Manager that was introduced in July 2010. An IBM Fellow, he was also one of the founding architects of System z Parallel Sysplex.

Patricia Selinger is an IBM Fellow and a leading member of the team that produced the world's first relational database system and created the basic architecture for DB2.

Cheryl Watson has been sharing her extensive knowledge of MVS performance analysis and capacity planning since 1965 as a consultant, teacher, and author of Cheryl Watson's Tuning Letter.

Lynn Wheeler has been a major contributor to z/VM's success since his early days as the author of numerous enhancements to CP and CMS including the renowned "Wheeler Scheduler".

I realize that there are many more people who have had significant roles in the development and success of the IBM mainframe. Who else should be added to MainframeZone’s Mainframe Hall of Fame?

 



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Dayton Semerjian on Mainframe 2.0
August 17, 2010

Industry Expert Spotlight:
Watch Bob Thomas' interview with Dayton Semerjian—corporate senior vice president and general manager of CA Technologies' mainframe business unit. In this excerpt, Dayton discusses Mainframe 2.0.



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FUD on the Mainframe’s Demise
August 9, 2010

We are honored to present comments by Timothy Sipples in today's Big Iron Blog. Timothy is a regular contributor to the Mainframe Blog (www.mainframe.typepad.com).

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There's a lot of sloppy reporting in the world.  There's a lot of sloppy reporting in the world.  But it still amazes me that so many people would get things so wrong when it comes to the number of machines and what it signifies (see http://bit.ly/czXXRt).

If the world of computing were actually materially advancing, we would fully expect the number of machines to collapse to equal the number of data centers (perhaps plus one).  So that number would typically be two (or perhaps three):  one (or two) for the primary data center, and one for the alternate data center.  Any more than that means there are capacity constraints and/or inefficiencies yet to be conquered.

That's *exactly* what's happening/has happened as mainframe computing continues to push the envelope furthest and farthest.  The System z machines are getting so powerful, so efficient, so thoroughly virtualized, that the vast majority of customers only need "a couple" to run their entire businesses, and with the highest possible qualities of service.  And IBM is quite happy with that outcome, because it represents the highest achievement in real-world computing, the maximum bang-for-the-buck.  It's exactly what customers want (maximum efficiency), and it's exactly what IBM is building.  Citigroup said just that in the zEnterprise announcement:  they can do much more work on many fewer machines, and that's such an obvious and clear measure of business computing efficiency ("do more with less").

Yet that's exactly what's NOT happening (or at least not happening fast enough) in the rest of computing -- and that's a big problem for individual businesses and for the planet.  Remember those old movies which talked about how "the computer was so big, it took up a whole room"?  Well, unfortunately we've gone exactly backwards:  the rooms have gotten bigger, not smaller, and now they're stuffed to the gills with lots of machines, each satisfying (if we're lucky) a tiny piece of the overall business's needs.

This is progress?  Heck, no!

So let's consider what "modern" really means.  If one machine can do the work of thousands, in a fraction of the space/power/cooling, isn't that the more modern machine?  For sure, yes, it has got to be.



This article originally appeared in the IBM-MAIN forum. The views expressed are solely those of the author and do not necessarily reflect those of anyone else or of any particular company



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