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Why CICS need multi cics reigon, like AOR,TOR,FOR?

 
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wang_f_y1
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Joined: 16 May 2008
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PostPosted: Tue Jun 24, 2014 9:20 pm    Post subject: Why CICS need multi cics reigon, like AOR,TOR,FOR?
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I have only one CICS region currently, the customer have more workload to added, they suggest if it can change into a CICS multi region to handle this´╝č

why need to have multi cics reigon, like AOR,TOR,FOR, I have one single CICS region, i can increase EDSA size to fill more workload. what time is necessary to have multi cics reigon?
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steve-myers

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PostPosted: Wed Jun 25, 2014 3:15 am    Post subject:
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There are two major reasons why many installations choose to use multiple CICS regions.
  • Classic CICS uses what is called cooperative multi-tasking. In this environment all the tasks run in what amounts to a single computing engine, even if multiple computing engines are available. This limits performance.
  • With cooperative multi-tasking. a single misbehaving application can effectively stop other applications.
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Rohit Umarjikar

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PostPosted: Thu Jun 26, 2014 9:54 am    Post subject:
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Below links should help you,
http://ibmmainframes.com/about42517.html
http://pic.dhe.ibm.com/infocenter/cicsts/v4r2/index.jsp?topic=%2Fcom.ibm.cics.ts.scenarios.doc%2Fgenapp_cpsm%2Ftopics%2Fgenapp_topology.html
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