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SET VAR Example 1
In this example, AutoEdit statements in the job scheduling definition and the JCL allocate space for the job. If the job abends due to insufficient space, the AutoEdit statements adjust the allocated space and rerun or restart the job.
The following step in the JCL of the job sets the quantity of available space to five units of whatever type (track or cylinder) is specified in the job scheduling definition.
//STEP10 EXEC PGM=MYPGM
//OUTFILE DD DSN=NEWFILE,DISP=(NEW,CATLG,DELETE),
// SPACE=(%%SPACE_TYPE,5),UNIT=SYSDA
The job scheduling definition contains the following SET VAR statement that sets the space type to "track":
SET VAR %%SPACE_TYPE=TRK
In this case, the second line in the above DD statement resolves to:
// SPACE=(TRK,5),UNIT=SYSDA
The job scheduling definition also contains the following statements that are activated if the job abends due of lack of space (code S*37). These statements change the space type to "cylinder", which provides enough space, and rerun the job. If Control-M/Restart is active, the job is restarted from the abended step.
ON PGMST STEP10 CODES S*37
DO SET %%SPACE_TYPE = CYL
[DO IFRERUN FROM $ABEND] ===> If CONTROL-R is active
DO RERUN
If the job abends due to insufficient space, the second line of the earlier JCL DD statement resolves to:
// SPACE=(CYL,5),UNIT=SYSDA
when the job is submitted for rerun (or restart).
SET VAR Examples 2A and 2B
The following examples show how one job scheduling definition and one JCL member can be used for both the test environment and the production environment by changing the value of only one parameter, the SET VAR parameter.
Assume the following JCL for the job:
//PRDKPL01 JOB 0,M22,CLASS=A,MSGCLASS=X,REGION=4000K
//STEP01 EXEC %%PROC%%.INPT
//STEP02 EXEC %%PROC%%.UPDT
//STEP03 EXEC %%PROC%%.RPTS
SET VAR Example 2A
The following job scheduling definition replaces the %%PROC variable in the EXEC statements of the JCL with procedure name prefix TEST.
Figure 307 SET VAR Parameter Example – 2A
JOB: PRDKPL01 LIB CTM.PROD.SCHEDULE TABLE: PRODKPL
COMMAND ===> SCROLL===> CRSR
+-----------------------------------------------------------------------------+
MEMNAME PRDKPL01 MEMLIB CTM.PROD.JCL
OWNER SYS1 TASKTYPE JOB PREVENT-NCT2 DFLT N
APPL KPL GROUP PROD-KPL
DESC DAILY PRODUCTION - START OF APPL-PROD-KPL
OVERLIB STAT CAL
SCHENV SYSTEM ID NJE NODE
SET VAR %%PROC=TEST
SET VAR
CTB STEP AT NAME TYPE
DOCMEM PRDKPL01 DOCLIB CTM.PROD.DOC
===========================================================================
SCHEDULE RBC
RELATIONSHIP (AND/OR)
DAYS 01 DCAL
AND/OR
WDAYS WCAL
MONTHS 1- Y 2- Y 3- Y 4- Y 5- Y 6- Y 7- Y 8- Y 9- Y 10- Y 11- Y 12- Y
DATES
CONFCAL SHIFT RETRO Y MAXWAIT 00 D-CAT
MINIMUM PDS
COMMANDS: EDIT, DOC, PLAN, JOBSTAT 18.36.07
When a SET VAR statement is used to specify %%PROC=TEST, the JCL is resolved as follows:
//PRDKPL01 JOB 0,M22,CLASS=A,MSGCLASS=X,REGION=4000K
//STEP01 EXEC TESTINPT
//STEP02 EXEC TESTUPDT
//STEP03 EXEC TESTRPTS
SET VAR Example 2B
The job scheduling definition has now been modified to replace the procedures (%%PROC) used in the job with production (PROD) procedures.
Figure 308 SET VAR Parameter Example 2B
JOB: PRDKPL01 LIB CTM.PROD.SCHEDULE TABLE: PRODKPL
COMMAND ===> SCROLL===> CRSR
+----------------------------------------------------------------------------+
MEMNAME PRDKPL01 MEMLIB CTM.PROD.JCL
OWNER SYS1 TASKTYPE JOB PREVENT-NCT2 DFLT N
APPL KPL GROUP PROD-KPL
DESC DAILY PRODUCTION - START OF APPL-PROD-KPL
OVERLIB STAT CAL
SCHENV SYSTEM ID NJE NODE
SET VAR %%PROC=PROD
SET VAR
CTB STEP AT NAME TYPE
DOCMEM PRDKPL01 DOCLIB CTM.PROD.DOC
===========================================================================
SCHEDULE RBC
RELATIONSHIP (AND/OR)
DAYS 01 DCAL
AND/OR
WDAYS WCAL
MONTHS 1- Y 2- Y 3- Y 4- Y 5- Y 6- Y 7- Y 8- Y 9- Y 10- Y 11- Y 12- Y
DATES
CONFCAL SHIFT RETRO Y MAXWAIT 00 D-CAT
MINIMUM PDS
DEFINITION ACTIVE FROM UNTIL
===========================================================================
COMMANDS: EDIT, DOC, PLAN, JOBSTAT 18.36.07
When a SET VAR statement is used to specify %%PROC=PROD, the JCL is resolved as following:
//PRDKPL01 JOB 0,M22,CLASS=A,MSGCLASS=X,REGION=4000K
//STEP01 EXEC PRODINPT
//STEP02 EXEC PRODUPDT
//STEP03 EXEC PRODRPTS
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