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The original JCL:
//PDPA0001 JOB (......),BILL,CLASS=A |
//* %%LIBSYM CTM.LIB.SYMBOLS %%MEMSYM TAPES |
//STEP02 EXEC PDINP3 |
//S001.INPUT DD VOL=SER=%%FEDERAL_BANK_TAPE |
// |
The member TAPES in the CTM.LIB.SYMBOLS library contains:
* |
* EXTERNAL TAPES LIST |
* |
%%FEDERAL_BANK_TAPE=045673 |
%%IRS_TAPE=XXXXX |
%%STOCK_EXCHANGE_TAPE=YYYYYY |
. |
. |
The submitted JCL:
//PDPA0001 JOB (......),BILL,CLASS=A |
//* %%LIBSYM CTM.LIB.SYMBOLS %%MEMSYM TAPES |
//STEP02 EXEC PDINP3 |
//S001.INPUT DD VOL=SER=045673 |
// |
The use of a central member for all external tapes is a very simple management tool. The minute a tape arrives, its number is typed in the member, and the tape is sent to the computer room. There is no need to keep the tapes "at hand" on the schedulers’ table until the job is submitted. The function of receiving tapes can be centralized, controlled, and independent of the production process.
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