Hi Barbara, z/OS 2.2, SYS1.PARMLIB cataloged using ******, SYS1.PROCLIB not on the res volume, everything else cataloged to &SYSRS1. It works fine. I'll keep your warning about PARMLIB in the back of my mind and not try something dumb like recataloging it to &SYSRS1 when we go to 2.4 next year. :-)
Rex -----Original Message----- From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> On Behalf Of Barbara Nitz Sent: Thursday, August 29, 2019 12:18 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: [External] Re: Clarification on DASD mod conversion of SYSRES >I have never has a problem using &SYSR1 anywhere ****** could have been used. >Actually, the resolution of &SYSR1 occurs very early in the IPL, long before >CAS is initialized. > >The difference is that &SYSR1 is resolved by CAS, which is not yet initialized >at that moment. Until then, ****** does the built-in substitution. The non-full-function CAS address space used to start way after LPA and Linklist are built. When I had LPA and Linklist data sets catalogued on volume &SYSR1. (z/OS 1.13), the IPL essentially failed, because LPA was rather empty and also Linklist only had the automatically added libraries in it. Very hard to get a system up that way. There used to be a gap in the asid numbers (IIRC, it was a missing number 8) that was the non-full-function asid. When I just checked z/OS 2.3, that gap is gone. So either there isn't an early CAS anymore (the full-function CATALOG asid has number x'2B') or the early CAS uses REUSEASID=YES or the startup sequence was completely rewritten. In any case, when I check the VOLUME parm for DEFINE NONVSAM, it still reads to me that volume ****** covers the sysres volume and &xxxxx is supposed to be used for *extensions* of the sysres volume. This reads: "The symbol name is intended to represent the volume that is a logical extension of the system residence volume. ... IBM recommends the use of the symbol &SYSR2 for the first logical extension to the system reference volume, &SYSR3 for the second, and so on." So, has anyone IPL'd z/OS 2.2 or higher with the data sets on the sysres catalogued to volume &SYSR1. instead of volume ****** ??? Barbara ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN The information contained in this message is confidential, protected from disclosure and may be legally privileged. If the reader of this message is not the intended recipient or an employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any disclosure, distribution, copying, or any action taken or action omitted in reliance on it, is strictly prohibited and may be unlawful. If you have received this communication in error, please notify us immediately by replying to this message and destroy the material in its entirety, whether in electronic or hard copy format. Thank you. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
