Joe Morris wrote:
Anne & Lynn Wheeler <[EMAIL PROTECTED]> writes:
os/360 ... pcp. i don't remember that you could "sysgen" mvt until
release 12.
That agrees with my recollections. And one other event at release 12
was that the sources were all resequenced...which wasn't really that
much of an additional problem since so much of the code was reworked
for MVT.
Side question: "MVT" stood for "Multiprogramming with a Variable number
of Tasks." There was another name for MVT that appeared occasionally
in the self-documentation comments at the front of some source modules;
IIRC it was a 3-character term ending in "2" but I can't recall it. Does
this ring a bell with anyone? And where did it come from, and why
did it drop out of use?
at the univ. we didn't "sysgen" mvt until release 15/16 (i.e. there had
been problems with release 15 which delayed ship ... and they eventually
shipped it as combined with release 16).
Pity that someone didn't put release 17 out of its misery prior to FCS
and combine it with 18.
At the SHARE meeting following the release of 17 (Boston maybe?) there
was a session in which the IBM reps were being "sorely beaten upon"
by users because of the errors in the code; one of the IBMers finally
responded with "Do you expect us to always get it right the first time?"
The user who had been airing his gripes shot back "No, but we do expect
it to work the 17th time."
Everyone (including, although somewhat nervously, the IBMers) laughed.
part of the activity was to redo sysgen so i could run it in production
job stream. the other was so that i could carefully control the
placement of datasets and pds members for optimal disk arm movement (in
the resulting generated system).
Was this work the origin of the "JCAMOD" utility?
Joe Morris
not directly that i know of ... but it may have help contribute to being
able to specify cylinder location of disk VTOC that appeared in release
15/16. now i could place VTOC in the middle of the volume and somewhat
array files and PDS members radiating out from the center (instead from
cylinder zero) ... although PDS members was straight forward on the
increasing cylinder side of the VTOC ... but was less straight forward
on the decreasing cylinder side of the VTOC.
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