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I've worked a lot with more mid-range systems from IBM iSeries and pSeries. I'm having problems finding decent non-market-speak information on IBM System z/Mainframe. Yeah, I "get it" about consolidation and energy consumption and all that, but want to know some more on the internals.

Can anyone suggest a primer book (online?) that goes through the basics of the architecture, the basics of host and workflow management, maybe even how to execute Java (or Websphere?) direct?

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Another link I just came across. Any further recommendations appreciated. redbooks.ibm.com/redbooks/pdfs/sg246366.pdf –  Xepoch Dec 3 '09 at 5:08
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2 Answers

I give you: The Principles of Operation. This the definitive guide to the System Z architecture.

Your other areas of interest are a bit broad. IBM has documentation out the wazoo, but their website isn't always the easiest to search. Here is the z/OS Library Server index page, there's documentation on everything related to System Z software there.

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Wow, that truly is low level :) I'll keep searching and query back. In the meantime, any point recommendations still appreciated :) –  Xepoch Nov 20 '09 at 3:10
    
@Jeff Shattock, beware of what you ask you just might get it right? Can you recommend anything else online for a "little" higher level such as the software stack architecture? –  Xepoch Nov 22 '09 at 21:41
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How about "Introduction to the New Mainframe: z/OS Basics". That's designed for new users just like yourself.

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