Re: Time Change -- DOMINO400

CL program is the way to go for V5R2 or below. I believe the issue is the
change with QUTCOFFSET. When you change this value, Domino runs slow due
to all the GetTimeOfDay function for every process.

There is another way as outlined in a Walter Scanlan email earlier this
month. We have used it and it work great - must be V5R3.
OS/400 V5R3
Can use the same solution as V5R2 but also has this
alternate option.
Time maintenance application.
This application will slow or speed the clock so no "time
change" is required. The system clock is either sped up or slowed to
complete the desired time change. This tool is used on systems with
applications which cannot permit duplicate time stamps which might occur
by altering the system time. While Domino is not one of these applications
the system Domino is hosted on might have one of this time sensitive
applications requiring the use of this tool.

This application relies on a new OS/400 system value QTIMZON
If this application is used the Time is not CHANGED the QTIME
system clock is either slowed or sped to meet the time change.

Time maintenance application
Identifies the software to use to adjust the system clock to keep
it synchronized with an external time source. This system value does not
enforce the software specified, it only identifies the software to use.
This value should be maintained by time adjustment software and is
intended as an aid to prevent having multiple time adjustment applications
conflict with each other. There are no checks performed by the system to
verify this value or that software is or is not performing time
adjustments. IBM time adjustment offerings will use identifiers that start
with QIBM such as 'QIBM_OS400_SNTP'. Other software suppliers should
follow a similar naming convention of company name and product name.
Time adjustment software should check this system value prior to
starting. If this system value has an identifier for other time adjustment
software, then the software being started should notify the user of this
potential conflict and confirm that this time adjustment software should
be started. When there is not an identifier associated with this system
value, the software should update this system value to identify that it is
now responsible for adjusting the system clock. Time adjustment software
should check this system value again prior to ending. This system value
should be set to the value None only if the current value identifies this
time adjustment software that is ending.
Possible values are the following:
None
Indicates that time adjustment software has not been identified.
identifier
Identifies the software that will be used to adjust the system clock.
For more information about the SNTP client time maintenance
application that IBM supplies with the system, see the iSeries information
center.

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ChadB@wheeling-ni
sshin.com
Sent by: To
domino400-bounces Lotus Domino on the iSeries / AS400
+ewaters2=csc.com <domino400@xxxxxxxxxxxx>
@midrange.com cc

Subject
10/31/2005 02:10 Time Change
PM

Please respond to
Lotus Domino on
the iSeries /
AS400
<domino400@midran
ge.com>

Regarding the issue where Domino gets very slow after the OS time change
occurs (until the Domino server is restarted):

First, does this occur durning the spring and fall, or just during the
fall? I know we've seen the issue in the past, but can't remember if it
occurred this spring.

Second, does anyone know if there is a fix planned for this? It's nice
that the iSeries boxes now have good time zone support and finally handle
the time change on their own, but if Domino chokes on it, we've still got
to set up some intervention to to get the servers restarted after the OS
changes the time automatically.

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