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July 04, 2005


bob hoey

Good perspective and explanation of why the mainframe remains vibrant today and into the future. I agree with your point that continued investment in this platform in the areas of open, virtualization and collaboration are key. Thanks for taking the time to write this blog.

Bill Higgins

I would be curious to understand the most popular current "usage scenarios" for mainframes.

The one I'm most familiar with is hosting business applications in a utility environment. I.e. achieve economies of scale by hosting many applications from potentially many different customers on the same physical mainframe and allocating LPARs as needed to the different applications.

Are there any other really common usage scenarios for mainframes? E.g. "Huge financial institution uses a mainframe to settle accounts at the end of the day"

Irving Wladawsky-Berger

Bill, there are a few major kinds of application workloads for which the mainframe is particularly appropriate. First is the world of high volume transaction processing against a common shared data base, which typically requires lots of I/O. Workload consolidation is another very succesful application category on mainframes. Finally is any application that requires very high degrees of "industrial strenth", e.g., security, availability, etc.

A number of recent IBM Mainframe references and success stories can be found in http://www-1.ibm.com/servers/eserver/zseries/success/

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