Not sure if this is a problem anymore, but there was a time when things like
IMS got dorked up if the time was set backwards. IMS didn't like the idea of
creating a log record with a time that was earlier than the previous record, or
something like that.
>>> [EMAIL PROTECTED] 06/15/05 03:55PM >>>
At 03:23 PM 6/15/2005, you wrote:
>...
>
>If doing a periodic "T CLOCK=hh.mm.ss" is sufficient, then I'd cheat.
>I'd have a PC which is running a TN3270E emulator. This emulator would
>connect to z/OS as a console (Visara, 2074, ICC, or SMCS console). Have
>this PC sync its clock via the Internet. Have this PC run a script
>periodically which issues the "T CLOCK=hh.mm.ss".
>
>If you don't want a PC with a console, use a PC that somehow does the
>same thing. But you will need a PC somehow telling something on z/OS to
>issue the above command.
>
>There is __no__ way to update the TOD clock other than via an ETR.
>
>--
>John McKown
>Senior Systems Programmer
>UICI Insurance Center
>Information Technology
Ah, but the local time reported to users via the TIME macro, etc, is TOD
clock +/- CVTTZ or CVTLDTO, both of which come from the CLOCKxx member. A
tweak of these fields will tweak the reported local time. If there were a
time service client for MVS that would keep the time synced correctly,
presumably this is how it would do it.
The T CLOCK= idea is a good one; it may be that a rexx exec or small
program could get the time from the net and issue the command; it could
run periodically, and even limit the amount it adjusted the time by (so the
clock doesn't jump 5 minutes the first time it runs after an IPL :-)
-- Jim Blalock
z/OS Support, Clemson University
(864) 656-3680
[EMAIL PROTECTED]
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