On 7/21/2018 10:40 AM, Charles Mills wrote:
FWIW I think there was pressure from shops with 8-character IDs elsewhere
who wanted consistency on z/OS.
Not saying it was a good idea, or a bad idea, just sayin' ...
No. It was a desire for consistency *within* z/OS. I cover this change
beginning on slide 42 of my "z/OS V2R3 User Experiences" SHARE
presentation. Here's a link to the slide deck for the most recent
incarnation from Sacramento:
http://share.confex.com/data/handout/share/130/Session_22307_handout_11384_0.pdf
In summary, eight-character userids were supported by MVS 4.2 way back
in 1995. That support extended to every subsystem and environment across
the stack (the BCP, RACF, JES, CICS, DB2, etc.) with one exception:
TSO/E. The design of the old TSO account file -- which long predated
RACF -- led to an unfortunate decision to restrict TSO userids to seven
characters. After 22 years, that restriction was finally lifted in 2017
with z/OS 2.3 TSO/E.
--
Phoenix Software International
Edward E. Jaffe
831 Parkview Drive North
El Segundo, CA 90245
https://www.phoenixsoftware.com/
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