AMASPZAP treeat that as an alias for 44X'04', the VTOC. If you want track 0 you'll have to modify the DEB.
-- 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 Edward Gould <[email protected]> Sent: Monday, February 19, 2024 12:31 PM To: [email protected] Subject: Fwd: How read Cyl 0 from within a program? > Begin forwarded message: > > From: Charles Mills <[email protected]> > Subject: How read Cyl 0 from within a program? > Date: February 13, 2024 at 12:19:46 PM CST > To: [email protected] > Reply-To: IBM Mainframe Discussion List <[email protected]> > > I am interested in writing a program to read the IPL records from a DASD > volume. (Read only, not update). I am comfortable with XDAP but how do I OPEN > a "dataset" that would include cylinder 0? > > APF, OPERATIONS and so forth are not out of the question. > > Thanks, > Charles Its been a while but, doesn’t dsn-format4.dscb,vol=ser=………. Or am I thinking of the vtoc…? Ed ---------------------------------------------------------------------- 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
