If it's SMS managed and it's not temporary then it must be cataloged. If it's not SMS managed then duplicates are fine.
-- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 עַם יִשְׂרָאֵל חַי נֵ֣צַח יִשְׂרָאֵ֔ל לֹ֥א יְשַׁקֵּ֖ר ________________________________________ From: IBM Mainframe Discussion List <[email protected]> on behalf of Paul Gilmartin <[email protected]> Sent: Monday, November 27, 2023 2:31 PM To: [email protected] Subject: Passed vs. Cataloguee? Suppose I have two identical DSNs on different volumes. One is catalogued; the other not. (Does SMS allow that nowadays?) In a job step I allocate DD DISP=(SHR,PASS),VOL=SER=<uncatalogued>... In a subsequent step, I allocate by DSN with no explicit volume informarion. Which one wins, the passed or the catalogued? Where is this clearly documented? I don't see t in <https://www.ibm.com/docs/en/zos/3.1.0?topic=parameter-passing-data-set> How would a novice suss this out without a priori knowledge? What would ChatGPT say? -- gil ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
