Thanks for the additional info, Mark.
What I was specifically looking for was the local time of the IPL, so
the SMCA fields seem to be the ticket.
I have discovered that the CVTTZ field (for converting from UTC time
to local time) is not reliable. We run a FLEX-ES system on a laptop
here. The system suffers from MAJOR clock drift. The TOD clock will
drift out of true by a couple of DAYS per week! So for
auto-scheduling purposes, I periodically need to issue a SET
DATE/CLOCK command to correct the local time. Since doing that, I've
discovered that the CVTTZ field does get updated, but not by a large
enough value. (I'm guessing that it gets updated by the clock change
but not by the date change.)
Anyway, I also discovered that my SCHEDRUN program's clock knowledge
was getting screwed up. When I looked at the code, I found that it
was basing all of its date arithmetic upon TOD clock values adjusted
by the CVTTZ value. Well, because the CVTTZ was not coping with the
massive SET DATE/CLOCK change commands, the resulting scheduling was wrong two.
So I've been recoding SCHEDRUN's clock knowledge to use local time
(TIME BIN,ZONE=LT) as well as the System routines for time/date
conversions (STCKCONV and CONVTOD). One of the things that SCHEDRUN
needs to know is the local time of the last IPL, hence my initial query.
Dave Cole REPLY TO: [EMAIL PROTECTED]
Cole Software WEB PAGE: http://www.colesoft.com
736 Fox Hollow Road VOICE: 540-456-8536
Afton, VA 22920 FAX: 540-456-6658
At 6/25/2007 03:36 PM, you wrote:
As mentioned, my IPLINFO exec displays it - using those fields from the
SMCA. They have been there *a long time*.
But there is also a field in the IPA - IPAICTOD - defined as when
system initialization ended. It is slightly before the time in the SMCA and
is GMT, not local. IPAICTOD also matches what you see when you use the
"D IPLINFO" operator command.
Another place it is, that I have seen defined as "when initialization
began", is the SHID_TODCL field in the SHID. It is also in GMT.
Regards,
Mark
--
Mark Zelden
Sr. Software and Systems Architect - z/OS Team Lead
Zurich North America / Farmers Insurance Group: G-ITO
mailto:[EMAIL PROTECTED]
z/OS and OS390 expert at http://searchDataCenter.com/ateExperts/
Systems Programming expert at http://expertanswercenter.techtarget.com/
Mark's MVS Utilities: http://home.flash.net/~mzelden/mvsutil.html
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