69 lines
4.5 KiB
HTML
69 lines
4.5 KiB
HTML
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE html
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PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html lang="en-us" xml:lang="en-us">
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<meta name="DC.Type" content="concept" />
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<meta name="DC.Title" content="Synchronize date and time values" />
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<meta name="abstract" content="Management Central gives you a convenient way to synchronize date and time values across your network." />
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<meta name="description" content="Management Central gives you a convenient way to synchronize date and time values across your network." />
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<meta name="DC.Relation" scheme="URI" content="rzaih2.htm" />
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<meta name="DC.Relation" scheme="URI" content="../rzakt/rzaktkickoff.htm" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 1998, 2006" />
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<meta name="DC.Rights.Owner" content="(C) Copyright IBM Corporation 1998, 2006" />
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<meta name="DC.Format" content="XHTML" />
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<!-- All rights reserved. Licensed Materials Property of IBM -->
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<link rel="stylesheet" type="text/css" href="./ibmdita.css" />
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<link rel="stylesheet" type="text/css" href="./ic.css" />
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<title>Synchronize date and time values</title>
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</head>
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<body id="rzaihsyncdatetime"><a name="rzaihsyncdatetime"><!-- --></a>
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<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
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<h1 class="topictitle1">Synchronize date and time values</h1>
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<div><p>Management Central gives you a convenient way to synchronize date
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and time values across your network.</p>
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<p>To synchronize the date and time values across your network, select your
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endpoint systems or system groups whose date and time values you want to update
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from the <span class="uicontrol">Endpoint Systems </span>list under Management Central
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in iSeries™ Navigator.
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Then, right-click any selected system and select <span class="menucascade"><span class="uicontrol">System
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Values</span> > <span class="uicontrol">Synchronize Date and Time</span></span>.
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Specify a model system that has the most accurate date and time values.</p>
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<p>The date and time system values that are updated on the target systems
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include system date (QDAYOFWEEK, QDATE, QDAY, QMONTH, QYEAR), time of day
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(QTIME, QHOUR, QMINUTE, QSECOND), and time zone (QTIMZON). To verify that
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a time adjustment is being made, select the endpoint system from the list
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under My Connections (or your active environment) in iSeries Navigator. Then, go to <span class="menucascade"><span class="uicontrol">Configuration and Service</span> > <span class="uicontrol">Time Management</span> > <span class="uicontrol">Time Adjustment</span></span> to view the current time
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adjustment.</p>
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<p>The time used from the model system is the software clock time rather than
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the QTIME system value. The software clock time is the same as the QTIME system
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value except when the SNTP (Simple Network Time Protocol) client is started
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on the model system. When SNTP is running on the model system, the software
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clock is synchronized to the time server specified in the SNTP configuration.
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For more information about configuring SNTP, see Simple Network
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Time Protocol (SNTP).</p>
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<p>You can choose to synchronize the time without changing the time zone,
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or synchronize both the time and the time zone with those on the model system.</p>
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<p>When a system changes to or from Daylight Saving Time (DST), the GMT offset
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(QUTCOFFSET) system value is automatically updated from the GMT offset attribute
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of the time zone (QTIMZON) system value.</p>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rzaih2.htm" title="After Management Central has been set up, you can use it to streamline your server administration tasks.">Work with Management Central</a></div>
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</div>
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<div class="relinfo"><strong>Related information</strong><br />
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<div><a href="../rzakt/rzaktkickoff.htm">Simple Network Time Protocol (SNTP)</a></div>
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</div>
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</div>
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</body>
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</html>
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