Interesting. I remember the SMFid being around on MVS 3.7 and 3.8. The Sysname (CVTSNAME) became more important with the advent of Sysplex so I probably remember using it from then. Wikipedia has MVS/SP dated as 1980. It was preceded by MVS/SE and before that by MVS 3.8. I don't think I used MVS/SP until 1982ish.
Lennie -----Original Message----- From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> On Behalf Of Peter Relson Sent: 14 February 2023 01:34 To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: Question on use of LPARNAME, SYSNAME and SMFID >I think the SMFID is older than SYSNAME. I think SYSNAME dates from the late 80s or 90s, whereas SMFID was in the early versions of MVS. System symbols are only 30 years old, but system name (via CVTSNAME) has existed since at least MVS/SP1.3 (no later than 1977). SMF ID (SMCASID) appears to predate even that. It remains the case that, of the three items in the subject, only &SYSNAME is defined as a system symbol by z/OS. Peter Relson z/OS Core Technology Design ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
