An authorized application can directly update the VTOC, but an unauthorized application needs the allocation and OPEN. Neither the C/I nor the Initiator will open the dataset unless it is, e.g., STEPLIB.
-- 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 Itschak Mugzach <[email protected]> Sent: Monday, August 5, 2024 2:54 PM To: [email protected] Subject: Re: How to "touch" mainframe files I thought the op requires no allocation, no IO. VTOC alteration is the only way, I assume. ITschak *| **Itschak Mugzach | Director | SecuriTeam Software **|** IronSphere Platform* *|* *Information Security Continuous Monitoring for Z/OS, zLinux and IBM I **| * *|* *Email**: [email protected] **|* *Mob**: +972 522 986404 **|* *Skype**: ItschakMugzach **|* *Web**: http://www.securiteam.co.il/ **|* On Mon, Aug 5, 2024 at 9:02 PM Seymour J Metz <[email protected]> wrote: > No, you need an OPEN. > > -- > 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 Toby Seguin <[email protected]> > Sent: Monday, August 5, 2024 1:53 PM > To: [email protected] > Subject: Re: How to "touch" mainframe files > > I used to run IEFBR14 with a disp of shr,keep,keep to touch a dataset. It > keeps it from going to archive without opening it. Not sure if it updates > the last used date or not. I'd assume it would. > > Andrew Huntington > Project Coordinator > SECURITY ARCHITECTURE > > ---------------------------------------------------------------------- > 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 > ---------------------------------------------------------------------- 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
