Agreed Rob. However, to further respond to Charles' question, for a low overhead or non-SVC solution,
1.) Scan the TIOT... finding your DDName... 2.) Use the SVA (SWAREQ) to find the JFCB 3.) The JFCB data set name contains "NULLFILE" for both NULLFILE and DUMMY files. Tony Lubrano Product Author NEON Enterprise Software, LLC. p: 281 207 4922 f: 281 207 4973 tony.lubr...@neon.com What is zPrime? Find out at www.zprime.com or just ask us! -----Original Message----- From: IBM Mainframe Discussion List [mailto:ibm-m...@bama.ua.edu] On Behalf Of Rob Scott Sent: Friday, February 12, 2010 9:07 AM To: IBM-MAIN@bama.ua.edu Subject: Re: Determining if DUMMY allocation Tony Minor niggle - but shouldn't that be? : DEVTYPE =CL8'MYDDNAME',OUTAREA IF (LTR,R15,R15,NZ) *** DD Not allocated *** ELSEIF (OC,OUTAREA,OUTAREA,Z) *** DD DUMMY SPECIFIED *** ENDIF , Rob Scott Developer Rocket Software 275 Grove Street * Newton, MA 02466-2272 * USA Tel: +1.617.614.2305 Email: rsc...@rs.com Web: www.rocketsoftware.com -----Original Message----- From: IBM Mainframe Discussion List [mailto:ibm-m...@bama.ua.edu] On Behalf Of Tony Lubrano Sent: 12 February 2010 14:55 To: IBM-MAIN@bama.ua.edu Subject: Re: Determining if DUMMY allocation Charles, You can do a DEVTYPE macro to determine if the file is DUMMY or NULLFILE... the returned area is low-values: DEVTYPE =CL8'MYDDNAME',OUTAREA IF (LTR,R15,R15,NZ) *** DD Not allocated *** ENDIF , IF (OC,OUTAREA,OUTAREA,Z) *** DD DUMMY SPECIFIED *** ENDIF , OUTAREA DS D Tony Lubrano Product Author NEON Enterprise Software, LLC. p: 281 207 4922 f: 281 207 4973 tony.lubr...@neon.com What is zPrime? Find out at www.zprime.com or just ask us! -----Original Message----- From: IBM Mainframe Discussion List [mailto:ibm-m...@bama.ua.edu] On Behalf Of Charles Mills Sent: Friday, February 12, 2010 8:46 AM To: IBM-MAIN@bama.ua.edu Subject: Re: Determining if DUMMY allocation > look in the TIOT Where? Charles -----Original Message----- From: IBM Mainframe Discussion List [mailto:ibm-m...@bama.ua.edu] On Behalf Of Shmuel Metz (Seymour J.) Sent: Thursday, February 11, 2010 9:03 PM To: IBM-MAIN@bama.ua.edu Subject: Re: Determining if DUMMY allocation In <013801caab27$c57da320$5078e9...@org>, on 02/11/2010 at 06:37 AM, Charles Mills <charl...@mcn.org> said: >Is there a way to determine if a DD statement has been allocated DUMMY, >short of SVC 99 info retrieval? Before OPEN, use DEVTYPE or look in the TIOT. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
