What is the difference between REGION and SPACE parameters?
[b/]Question asked by visitor srini[/b]
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What is the difference between REGION and SPACE parameters?
[b/]Question asked by visitor srini[/b]
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:)
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