If you are running authorized you can MODESET to key zero and modify the DEB.
Measure twice cut once. -- 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 Tony Thigpen <[email protected]> Sent: Friday, June 14, 2024 11:20 AM To: [email protected] Subject: Getting dasd info All, I have a z/VSE program that I want to start using with z/OS. The program issues several CCWs to the DS8000, such as SNS, SSS, RCD, & PSSF that are either volume specific or subsystem specific. Not file specific. My first question is in the area of getting access to a specific volume on z/OS. In z/VSE, I just do an ASSGN to the disk and issues the EXCPs. On z/OS, I expect I need to perform an OPEN against the volume using something like: //SOURCE DD UNIT=3390,VOL=SER=AVOLID,DISP=OLD Any pointers would be appreciated. My second question relates to 'authority'. On z/VSE, I have to tell the operating system that I am actually 'DSF' before it will allow me to issue these CCWs. Do I have to do something special on z/OS? Thanks, Tony Thigpen ---------------------------------------------------------------------- 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
