RE: Changing the system clock this weekend...

["Ketzes, Larry" <Larry.Ketzes@xxxxxxx>]

Joel,
        Are you intending on taking down your MQSeries this weekend for this
event?

======================

Larry Ketzes
iSeries Senior System Administrator
American Life Insurance Company

One ALICO Plaza
600 King Street
Wilmington, DE 19801
Phone: 302-594-2146
Mobile: 302-559-1631

Fax: 302-830-4524


Email: larry.ketzes@xxxxxxx

 


-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Harvell, Joel
Sent: Thursday, October 26, 2006 2:08 PM
To: Midrange Systems Technical Discussion
Subject: RE: Changing the system clock this weekend...

V5R3

 
Joel B. Harvell
Food Lion, LLC
(704) 633-8250 x2709
jbharvell@xxxxxxxxxxxx

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Ketzes, Larry
Sent: Thursday, October 26, 2006 2:06 PM
To: Midrange Systems Technical Discussion
Subject: RE: Changing the system clock this weekend...

Joel,
        What release of the OS are you at?

Larry

======================

Larry Ketzes
iSeries Senior System Administrator
American Life Insurance Company

One ALICO Plaza
600 King Street
Wilmington, DE 19801
Phone: 302-594-2146
Mobile: 302-559-1631

Fax: 302-830-4524


Email: larry.ketzes@xxxxxxx

 


-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Harvell, Joel
Sent: Thursday, October 26, 2006 1:13 PM
To: Midrange Systems Technical Discussion
Subject: RE: Changing the system clock this weekend...

MQ is definitly not resolved.  We have to shutdown MQ this weekend for
an hour.  I've been having fun getting ready for this.:-P

 
Joel B. Harvell
Food Lion, LLC
(704) 633-8250 x2709
jbharvell@xxxxxxxxxxxx

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Al Barsa
Sent: Thursday, October 26, 2006 1:04 PM
To: Midrange Systems Technical Discussion
Subject: Re: Changing the system clock this weekend...

When you "fall back" the system must essentially be quicessed.  There
were
some issues with MQ and SAP in '04.  Unknown if they were resolved.

Al

Al Barsa, Jr.
Barsa Consulting Group, LLC

400>390

"i" comes before "p", "x" and "z"
e gads

Our system's had more names than Elizabeth Taylor!

914-251-1234
914-251-9406 fax

http://www.barsaconsulting.com
http://www.taatool.com
http://www.as400connection.com



 

             "Graap, Kenneth"

             <keg@xxxxxxxxxxxx

             m>
To 
             Sent by:                  "Midrange"

             midrange-l-bounce         <midrange-l@xxxxxxxxxxxx>

             s@xxxxxxxxxxxx
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                                       youngren@xxxxxxxxxx

 
Subject 
             10/26/2006 12:22          Changing the system clock this

             PM                        weekend...

 

 

             Please respond to

             Midrange Systems

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             <midrange-l@midra

                 nge.com>

 

 





I know that if we don't do anything on our V5R3 system, the system clock
will automatically be moved back an hour this coming Sunday morning...

Does anyone share my concern that doing this on an "active system" will
result in Job Accounting, Security and Application journal integrity
issues?

For example, our job accounting journal we will most likely show jobs
ending before they started... Application journals could have issues
with
commitment boundaries and recovery issues related to inconsistencies in
the
time stamp on journal entries. Security events logged to the security
journal will overlap for an hour.

How do you get around these issues without quiescing your system or
powering it off for an hour and manually changing the clock when nothing
is
active?

I can't seem to find anyone at IBM who cares about this issue. They did
say
not to have any time sensitive processes running at 2am on Sunday
though.
On a 7/24 system using journaling, isn't everything "time sensitive"?

We also have our system configured to verify the system date using SNTP
and
I've been told that the SNTP server we point to will move the clock back
automatically too...

Does anyone on this list share my concern about this issue or am I just
blowing this all out of proportion?

I'd really like to know your opinion on this matter....

Thanx

Kenneth

****************************************
Kenneth E. Graap
IBM Certified Specialist
iSeries Multiple System Administrator
NW Natural (Gas Services)
keg@xxxxxxxxxxxxx
Phone: 503-226-4211 x5537
FAX:    503-721-2518
****************************************

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