The other
option is to run the system on GMT so that you do not have to bow to the
vagaries of government, state or federal J That works for us because we have datacenters and users scattered
around the globe.
Regards,
Richard Schuh
-----Original
Message-----
From: The IBM z/VM Operating
System [mailto:[EMAIL PROTECTED]On
Behalf Of Mike Walter
Sent: Monday, March 27, 2006 1:08
PM
To: [email protected]
Subject: Re: Time Change
Chuck,
Dig out your "z/VM CP Planning
and Administration" manual (or see:
http://publibz.boulder.ibm.com/epubs/pdf/hcsg2b10.pdf )
Look up "TIMEZONE_BOUNDARY
Statement", see "Usage Notes" item #2.
In short, your easiest and most
reliable course of action is to IPL after 03:15 AM in the spring and fall. That
should be clear enough to overcome most human error.
Relying on "CP SET
TIMEZONE" can work if all your ducks are lined up properly. But if
one duck is out of line, you're "out of duck". :-)
Can you 100% positively guarantee
that all your applications can handle a timezone change gracefully? Will
they get upset if they see a second 02:00 AM, 02:01 AM, 02:02 AM , etc. in the
fall? Will they become hopelessly confused of they miss hour of time
between 02:00 and 03:00 AM in the spring? Your call...
Mike Walter
Hewitt Associates
The opinions expressed herein are
mine alone, not my employer's.
|
"Kreiter,
Chuck" <[EMAIL PROTECTED]>
Sent by: "The
IBM z/VM Operating System" <[email protected]>
03/27/2006 02:54 PM
|
|
Being new to z/VM, I was wondering what most users do for the time
change? I noticed several definitions SYSTEM CONFIG that appear to handle
that automagically, but wanted to see if there was a procedure that needed to
be followed to activate it.
Thanks,
Chuck
Kreiter
Lead Systems Programmer
State Auto Insurance
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