The TSO ID is used as a HLQ for data set names. Therefore it must meet the rules for MVS Dataset names: first character A-Z@#$, second to seventh character A-Z@#$0-9, max 7 due to PDS member needing 8th character. Minimum length determined by site.
On Thu, Sep 15, 2016 at 11:19 AM, Tony Harminc <[email protected]> wrote: > On 15 September 2016 at 02:41, Timothy Sipples <[email protected]> wrote: >> Tony Harminc wrote: >>>What, in this context, is an MVS subsystem? ...And where is this >>>text from -- evidently not the RACF Security Administrator's Guide? >> >> You are allowed to take a look at the Administrator's Guide. :) > > I already had, and the phrase "MVS subsystem" does not appear in that book. > >> But here's a copy/paste: >> >> "TSO and MVS also require that the first character of user IDs be uppercase >> A - Z, # (X'7B'), $ (X'5B'), or @ (X'7C')." > > That says nothing about "subsystem". You appear to have inserted the > word, and I'm just trying to understand why and with what meaning. > >> So what does "MVS" mean in this context? The Administrator's Guide doesn't >> say. "Not z/OS UNIX System Services" is a reasonable answer, but it might >> be a partial one. > > I obviously wasn't clear: It's the "subsystem" part I'm asking about, > not the "MVS" part. I know at least a couple of meanings of the word > "subsystem" in MVS. But I don't know of any such usage that sets these > additional requirements for userids. Unless you are using it with some > trivial meaning like "stuff that runs on MVS that isn't UNIX or TSO > and somehow, you know, does stuff with userids". > > Tony H. > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN -- Mike A Schwab, Springfield IL USA Where do Forest Rangers go to get away from it all? ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
