59 lines
3.9 KiB
HTML
59 lines
3.9 KiB
HTML
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<meta name="DC.Title" content="DDM terminology" />
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<meta name="abstract" content="The same server is used for both DDM and DRDA TCP/IP access to DB2 Universal Database for iSeries." />
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<title>DDM terminology</title>
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<body id="rbae5term"><a name="rbae5term"><!-- --></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">DDM terminology</h1>
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<div><p>The same server is used for both DDM and DRDA<sup>®</sup> TCP/IP access to <span class="keyword">DB2 Universal Database™ for iSeries™</span>.</p>
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<p>For brevity, the term <em>DDM server</em> will be used rather than <em>DRDA/DDM
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server</em> in the following discussion. Sometimes, however, it may be referred
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to as the <em>TCP/IP server</em>, the <em> DRDA server</em>, or the <em>server</em> when
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the context makes the use of a qualifier unnecessary.</p>
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<p>The DDM server consists of two or more jobs, one of which is what is called
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the DDM <em>listener</em> (or daemon), because it listens for connection requests
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and dispatches work to the other jobs. The other job or jobs, as initially
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configured, are prestart jobs which service requests from the DRDA or DDM client
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after the initial connection is made. The set of all associated jobs, the
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listener and the server jobs, are collectively referred to as the <em>DDM server</em>.</p>
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<p>The term <em>client</em> is used interchangeably with <em>DRDA Application
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Requester</em> (or AR) in the DRDA application environment. The term client will be
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used interchangeably with <em>DDM source system</em> in the DDM (distributed
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file management) application environment.</p>
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<p>The term <em>server</em> is used interchangeably with <em>DRDA Application
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Server</em> (or AS) in the DRDA application environment. The term server will be
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used interchangeably with <em>DDM target system</em> in the DDM (distributed
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file management) application environment.</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="rbae5mtserv.htm" title="These topics describe how to manage the DRDA and DDM server jobs that communicate using sockets over TCP. It describes the subsystem in which the server runs, the objects that affect the server, and how to manage those resources.">Manage the TCP/IP server</a></div>
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