Re: Changing system time when using STP

גדי בן אבי Wed, 02 Sep 2009 00:27:01 -0700

Hi,

Currently, I have no time zone defined.
Is changing the time zone in the STP task a disruptive task?

TIA

Gadi

-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of 
Peter Bishop
Sent: Wednesday, September 02, 2009 9:57 AM
To: [email protected]
Subject: Re: Changing system time when using STP

On Wed, 2 Sep 2009 09:44:21 +0300, &#1490;&#1491;&#1497; &amp;#1489;&#1503; 
&#1488;&#1489;&#1497; <[email protected]> wrote:

>Hi,
>
>A few months ago we replaced our Sysplex Timer (9037-002) with STP.
>
>We have two z890’s. Each z890 has a production LPAR and a test LPAR. The
production LPAR’s form one basic sysplex, and the test LPAR’s form another
sysplex.
>
>All LPAR’s are running z/OS 1.9.
>
>The CLOCKxx members look like this:
>OPERATOR NOPROMPT
>TIMEZONE E.00.00.00
>ETRMODE  NO
>ETRZONE  NO
>STPMODE  YES
>STPZONE  YES
>ETRDELTA 1
>
>At the end of September (on the 27th) we will change back to winter time.
>
>In the past, when we had a sysplex timer, we would shut down all systems,
change the time on the sysplex timer, wait an hour and IPL the systems to
change the time.
>
>What would be the suggested procedure today when using STP?
>
>TIA
>
>Gadi
>

In the Timing Network tab of the Sysplex Time task, look at the "Adjust
TimeZone" panel and you'll see a method for adding/subtracting DST offset.

See the Redbook for gory details, including screenshots, etc.

SG24-7281-01 STP Impl Guide.  p175-177

cheers
Peter

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