69 lines
3.8 KiB
HTML
69 lines
3.8 KiB
HTML
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<meta name="DC.Title" content="Example: Reduce save-outage time for a directory" />
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<title>Example: Reduce save-outage time for a directory</title>
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</head>
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<body id="ifsreduce"><a name="ifsreduce"><!-- --></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">Example: Reduce save-outage time for a directory</h1>
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<div><div class="section"> <p>This example uses a directory, MyDirectory. The directory contains
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objects that you will save on a daily basis. Your current save strategy ends
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jobs that make changes to the objects in the directory for the entire time
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that the you are saving the directory.</p>
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<p>The objects that exist in the
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directory may or may not be journaled.</p>
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<p>The several hour save-outage
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time can be greatly reduced by the following steps: </p>
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</div>
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<ol><li class="stepexpand"><span>End all application jobs that are making updates to the objects
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in MyDirectory.</span></li>
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<li class="stepexpand"><span></span> Submit the following command as an individual batch
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job: <pre>SAV DEV('/QSYS.LIB/TAP01.DEVD') +
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OBJ('/MyDirectory') SAVACT(*SYNC) +
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SAVACTMSGQ(QSYS.LIB/LIB1.LIB/MSGQ1.MSGQ)
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</pre>
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<p>The objects in directory MyDirectory reach a checkpoint
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together, as specified by SAVACT(*SYNC). The server saves the objects TAP01.
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The server sends the message indicating that checkpoint processing is complete
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to MSGQ1</p>
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</li>
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<li class="stepexpand"><span>After checkpoint processing is complete, the message queue receives
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the message CPI3712. If checkpoint processing does not complete for the objects,
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message queue receives the message CPI3722 and the save operation
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ends.</span></li>
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<li class="stepexpand"><span>After receiving CPI3712 message, start the application jobs that
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make updates to the objects in the directory.</span></li>
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</ol>
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<div class="section"> <p>The objects exist on the media as they were at the time the application
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jobs were ended, prior to the save command being run. The save-while-active
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function greatly reduces the amount of time that the applications are not
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available.</p>
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</div>
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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="rzaiurzaiu344.htm" title="Use the save-while-active function to reduce your save-outage time. This is the easiest way to use the save-while-active function.">Reduce your save-outage time</a></div>
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</div>
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</div>
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</body>
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