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[mask-of-zorro]

Hello everyone,

Pardon me for this novice question.Can anyone tell me what is DFSRRC00 and what does it do in a JOB? I've heard, its the first pgm to take control when the job runs. can u suggest any links to know more about DFSRRC00?

[shekar123]

Hi mask-of-zorro,

DFSRRC00 is mainly used in IMS environment.A execute jcl for IMS program after it has been compiled looks like below.Many parameters are passed to DFSRRC00, but the following three are the most often used.The program executed in an IMS batch job is not your application program. it is the IMS batch control region DFSRRC00.

Code:

//STEP0100 EXEC PGM=DFSRRC00,PARM=(DLI,PGMNAME,PSBNAME)

Code:

DFSRRC00   NAME FOR THE BATCH IMS MODULE FROM IBM

Code:

DLI      THIS PARAMETER IS REQUIRED. IT TELLS IMS THAT IT WILL BE RESPONSIBLE FOR THE APPLICATION  CONTROL BLOCK (ACB) BUILDING PROCESS. OTHER POSSIBLE VALUES ARE DBB AND BMP.

Code:

PGMNAME      NAME OF THE IMS APPLICATION PROGRAM

Code:

PSBNAME      NAME OF THE PROGRAM SPECIFICATION BLOCK OR PSB FOR YOUR PROGRAM.THIS IS USUALLY SAME NAME AS YOUR APPLICATION PROGRAM

_________________
Shekar
Grow Technically

[mask-of-zorro]

Thanks for the info Shekar. I wud get it more if anyone explains it elaborately or suggest me some books to get more info on it