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JCL - What is the purpose and meaning of the REGION keyword and what JCL statement is it associated with?




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asked mar September 8, 2014 11:36 AM  

What is the purpose and meaning of the REGION keyword and what JCL statement is it associated with?


           

1 Answers



 
answered By Mswami   0  

REGION specifies the maximum CPU memory allocated for a particular job or job step. If REGION is in the JOB card, it relates to the entire job; if in the EXEC statement, it relates to the job step.

Specifies the address space required to run a job step within the job.

Following is the syntax:

REGION=nK | nM

Here, region can be specified as nK or nM where n is a number, K is kilobyte and M is Megabyte.

When REGION = 0K or 0M, largest address space is provided for execution.In critical applications, coding of 0K or 0M is prohibited to avoid wasting the address space.

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