USERID length can be 8. TSO USED to have a limit of 8, with the SYS1.UADS emergency logon adding a digit to access multiple records, and job submission adding a character for the jobname.
The 8th character was/is the length in Binary, x'01'-x'07'. Now you can specify an 8 byte TSO USERID, with the 8th character being > x'07'. https://www.ibm.com/support/knowledgecenter/SSLTBW_2.3.0/com.ibm.zos.v2r3.e0za100/ch1tso_23_8char.htm. On Thu, Apr 30, 2020 at 8:21 PM Frank Swarbrick <frank.swarbr...@outlook.com> wrote: > > I'm asking about the user ID, not the password/pass phrase. But thanks. > > ________________________________ > From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> on behalf of > Jesse 1 Robinson <jesse1.robin...@sce.com> > Sent: Thursday, April 30, 2020 2:03 PM > To: IBM-MAIN@LISTSERV.UA.EDU <IBM-MAIN@LISTSERV.UA.EDU> > Subject: Re: Mainframe user ID length > > RACF can now handle 'password phrase' of considerable length and/or > upper/lower case passwords. If you allow lower case, you can end up with a > mess. With traditional upper-only system option, a password typed e.g. via > TSO gets automatically translated to upper case with no user notification. > With the system option set to lower case allowed, that translation does not > occur. This means that every password entry *must* also be lower case. Some > logon environments may not allow lower case. Worse, if there is a severe > problem that requires fallback to upper only, a user with a lower case > password may not be able to logon at all. > > This is an all or nothing option. Allowing or disallowing lower case affects > all environments at the same time. > > . > . > J.O.Skip Robinson > Southern California Edison Company > Electric Dragon Team Paddler > SHARE MVS Program Co-Manager > 323-715-0595 Mobile > 626-543-6132 Office ⇐=== NEW > robin...@sce.com > > -----Original Message----- > From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> On Behalf Of > Frank Swarbrick > Sent: Thursday, April 30, 2020 12:46 PM > To: IBM-MAIN@LISTSERV.UA.EDU > Subject: (External):Mainframe user ID length > > CAUTION EXTERNAL EMAIL > > Is z/OS still limited in all cases to 8 upper case characters? I am curious > if a user that only has access to MQ might be able to have a longer and > ideally mixed case user ID. They wouldn't have access to TSO or CICS or IMS. > > > ---------------------------------------------------------------------- > 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 -- 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 lists...@listserv.ua.edu with the message: INFO IBM-MAIN
