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Thread: Difference between REGION and SPACE parameters

  1. #1
    Geek_Guest
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    Difference between REGION and SPACE parameters

    What is the difference between REGION and SPACE parameters?

    [b/]Question asked by visitor srini[/b]


  2. #2
    Junior Member
    Join Date
    May 2007
    Answers
    7

    Smile Re: Difference between REGION and SPACE parameters

    Reagon is given for Job or Exec pgm to hold the info about the job or pgm.
    Space is given for Dataset/File to hold the records/info

    Savvy


  3. #3
    Contributing Member
    Join Date
    May 2007
    Answers
    85

    Re: Difference between REGION and SPACE parameters

    The two are unrelated except for the fact they are JCL statements.

    SPACE= is coded on the DD statement and denotes the DASD location and the amount of space requested for a new or temporary dataset.

    REGION= is the maximum amount of memory available to a step or job.
    In common usage, never code REGION= on your job card as this defines the upper limit for memory for the entire job. It's far better to specify it on your step card. This way if a single step needs more memory, you can allow for that.
    If REGION= is coded on the job card, you will have to change it there. This is not a problem so long as you are the only person maintaining the JCL. When other support people get involved, they will rarely look for a REGION= on a job card. This makes it more difficult for people to support your JCL.

    kk


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