52 lines
4.2 KiB
HTML
52 lines
4.2 KiB
HTML
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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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<meta name="DC.Type" content="concept" />
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<meta name="DC.Title" content="Remote journals and auxiliary storage" />
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<meta name="abstract" content="Auxiliary storage will be required on both the source and target systems. The amount that is required will be about the same on both systems." />
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<meta name="description" content="Auxiliary storage will be required on both the source and target systems. The amount that is required will be about the same on both systems." />
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<meta name="copyright" content="(C) Copyright IBM Corporation 2004, 2006" />
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<title>Remote journals and auxiliary storage</title>
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</head>
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<body id="rzakirauxstore"><a name="rzakirauxstore"><!-- --></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">Remote journals and auxiliary storage</h1>
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<div><p>Auxiliary storage will be required on both the source and target systems. The amount that is required will be about the same on both systems.</p>
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<p>Anything that is done to minimize the amount of auxiliary storage required on the source system will reduce the amount of auxiliary storage required on the target system. Additionally, the less auxiliary
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storage used, or smaller the journal receivers are, the less data is transmitted on the communications links. Therefore, the communications overhead will be reduced.</p>
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<p>If the target system is not working for any extended period of time, enough auxiliary storage on the source system is needed to keep the journal receivers online. This will be required until the target
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system becomes available at which time the journal receivers can be replicated to the target and deleted from the source.</p>
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<p>See Methods to reduce the storage that journal receivers use for more information about ways to reduce the auxiliary storage usage.</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="rzakiplanrjrn.htm" title="The following topics provide detailed information for planning to set up remote journals:">Plan for remote journals</a></div>
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</div>
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<div class="relconcepts"><strong>Related concepts</strong><br />
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<div><a href="rzakireducesize.htm" title="Reduce the size of journal entries by methods such as journaling after-images only, or specifying certain journaling options including the Fixed Length Data (FIXLENDTA) option on the Create Journal (CRTJRN) and Change Journal (CHGJRN) commands.">Methods to reduce the storage that journal receivers use</a></div>
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</div>
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<div class="reltasks"><strong>Related tasks</strong><br />
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<div><a href="rzakiperform.htm" title="There are two main performance objectives for the remote journal function. To provide a timely delivery of journal entries to a target system and to minimize impacts to the journaling throughput on the source system.">Factors that affect remote journal performance</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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