Use the DYNAMNBR parameter to tell the system to hold a number of resources in anticipation of reuse. Code DYNAMNBR instead of several DD statements with DYNAM parameters.
//STEP1 EXEC PROC=ACCT,DYNAMNBR.CALC=12
For the procedure step CALC, this statement specifies that the system should hold the following data set allocations for reuse: 12 plus the number of DD statements following this EXEC statement and the number of DD statements in procedure ACCT.
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