Every release tool that I am aware of does an OPEN/CLOSE. I know of no reason why a program would need to read the directory in order to release space.
Does ISPF create and delete a dummy member? If so, why is that required? -- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 ________________________________________ From: IBM Mainframe Discussion List [[email protected]] on behalf of David Cole [[email protected]] Sent: Wednesday, December 21, 2022 4:20 AM To: [email protected] Subject: RLSE - A question about releasing unused tracks in a DASD dataset Is there a way to release unused tracks in a classic z/OS PDS but without having to open and close it? Or if opening/closing is required, is there a way to do that for a PDS without knowing (or discovering) what members are in it, and without creating a new member? Obviously, I could write something, but I don't want to. And I cannot rely on the presence of any program or TSO command that does not come standard on a z/OS system? I don't think there is a way to do this, but I'd love for someone to prove me wrong. David Cole [email protected] (personal) [email protected] (business) 540-456-6518 (cell) ---------------------------------------------------------------------- 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
