The Help panels say it can be overridden, but experimentation seems to prove otherwise, unless I've missed something.
My job: //STEP1 EXEC PGM=IDCAMS //SYSPRINT DD SYSOUT=* //DDI DD DISP=SHR,DSN=VAT.ALL.VA030V //DDO DD DISP=(NEW,CATLG),DSN=DPC088.VA30.DUMP,LRECL=300,RECFM=FB, // SPACE=(TRK,(2,2)),UNIT=(SYSDA,1),STORCLAS=LOGRSC //SYSIN DD * REPRO IFILE(DDI) - OFILE(DDO) /* ACS routine points LOGRSC storclass to a pool with 4 volumes. DEFAULT dataclass includes a dynamic volcount of 12. Result: NONVSAM ------- DPC088.VA30.DUMP IN-CAT --- CATALOG.SYSTEMS.USERCAT HISTORY DATASET-OWNER-----(NULL) CREATION--------2007.193 RELEASE----------------2 EXPIRATION------0000.000 ACCOUNT-INFO-----------------------------------(NULL) SMSDATA STORAGECLASS -----LOGRSC MANAGEMENTCLASS---(NULL) DATACLASS -------DEFAULT LBACKUP ---0000.000.0000 VOLUMES VOLSER------------SMS003 DEVTYPE------X'3010200F' VOLSER------------SMS004 DEVTYPE------X'3010200F' VOLSER------------SMS001 DEVTYPE------X'3010200F' VOLSER------------SMS002 DEVTYPE------X'3010200F' ASSOCIATIONS--------(NULL) ATTRIBUTES Greg Shirey Ben E. Keith Company -----Original Message----- From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of Mark Zelden Sent: Thursday, July 12, 2007 8:41 AM If so, then coding something like UNIT=(SYSALLDA,1) should work. JCL is merged with DATACLAS, but also overrides it. Mark ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html