z/OS 2.4 DFSMS Using Data Sets, SC23-6855-4. p. 493:
Entry Type Hex Symbol 3 Byte Address-Purpose Page
Code
Data control 05 EXLDCBEX Take an exit during open processing. "DCB
OPEN Exit on
page 500
--
Shmuel (Seymour J.) Metz
http://mason.gmu.edu/~smetz3
________________________________________
From: IBM Mainframe Discussion List [[email protected]] on behalf of
Joseph Reichman [[email protected]]
Sent: Thursday, August 5, 2021 2:36 PM
To: [email protected]
Subject: Code for DCB “OPEN” exit
Hi
Looking for the one byte code for open exit doesn’t seem any documentation for
it
Is it x’05’ ihaexlst has that for dcb exit but there is some sample code in the
dataset macros that indicate this is it
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