90 lines
6.0 KiB
HTML
90 lines
6.0 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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<meta name="DC.Title" content="Set up DDM files" />
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<meta name="abstract" content="The implementation of DRDA support on the iSeries server uses Distributed Data Management (DDM) conversations for communications. Because of this, you can use DDM in conjunction with distributed relational database processing." />
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<meta name="description" content="The implementation of DRDA support on the iSeries server uses Distributed Data Management (DDM) conversations for communications. Because of this, you can use DDM in conjunction with distributed relational database processing." />
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<meta name="DC.subject" content="DDM file, setting up, communications, DDM and DRDA coexistence, DDM file access, RUNRMTCMD command, SBMRMTCMD command" />
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<meta name="keywords" content="DDM file, setting up, communications, DDM and DRDA coexistence, DDM file access, RUNRMTCMD command, SBMRMTCMD command" />
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<meta name="DC.Relation" scheme="URI" content="rbal1admin.htm" />
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<meta name="DC.Relation" scheme="URI" content="../cl/crtddmf.htm" />
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<meta name="DC.Relation" scheme="URI" content="../ddm/rbae5kickoff.htm" />
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<link rel="stylesheet" type="text/css" href="./ic.css" />
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<title>Set up DDM files</title>
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</head>
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<body id="rbal1setddm"><a name="rbal1setddm"><!-- --></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">Set up DDM files</h1>
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<div><p>The implementation of DRDA<sup>®</sup> support on the <span class="keyword">iSeries™ server</span> uses
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Distributed Data Management (DDM) conversations for communications. Because
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of this, you can use DDM in conjunction with distributed relational database
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processing.</p>
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<div class="section"> <p>You can use DDM to submit remote commands to an application server
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(AS), copy tables from one <span class="keyword">iSeries server</span> to
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another, and process nondistributed relational database work on another server.</p>
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<p>With
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distributed relational database, information the application requester (AR)
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needs to connect to a database is provided in the relational database directory.
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When you use DDM, you must create a separate DDM file for each file you want
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to work with on the application server (AS). The DDM file is used by the application
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on the application requester (AR) to identify a remote file on the application
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server (AS) and the communications path to the application server (AS).</p>
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<p>As
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of V5R2, you can also create DDM files with a reference to an RDB directory
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entry. Some database administration tasks discussed in Manage a distributed
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relational database use DDM to access remote files. A DDM file is created
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using the <span class="cmdname">Create Distributed Data Management File (CRTDDMF)</span> command.
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You can create a DDM file before the file and communication path named in
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the file have been created. However, the file named in the DDM file and the
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communications information must be created before the DDM file is used by
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an application.</p>
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<p>The following example shows one way a DDM file can be
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created: </p>
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<pre>CRTDDMF FILE (TEST/KC105TST) RMTLOCNAME(KC105)
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RMTFILE(SPIFFY/INVENT)</pre>
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<p>If the DDM file access in the
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example is to be over TCP/IP, you must specify *IP in the second element of
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the RMTLOCNAME parameter.</p>
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<p>This command creates a DDM file named KC105TST
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and stores it in the TEST library on the application requester (AR). This
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DDM file uses the remote location KC105 to access a remote file named INVENT
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stored in the SPIFFY library on the target <span class="keyword">iSeries server</span>.</p>
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<p>You
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can use options on the Work with DDM Files display to change, delete, display
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or create DDM files.</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="rbal1setup.htm" title="The runtime support for an iSeries distributed relational database is provided by the operating system. Therefore, when the operating system is installed, distributed relational database support is installed.">Initial setup</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="rbal1admin.htm" title="As an administrator for a distributed relational database, you are responsible for work being done on several servers.">Administration</a></div>
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<div><a href="../ddm/rbae5kickoff.htm">Distributed data management</a></div>
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<div><a href="rbal1opremote.htm" title="As an administrator in a distributed relational database you might have to operate a remote iSeries server.">Operate remote iSeries servers</a></div>
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</div>
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<div class="relref"><strong>Related reference</strong><br />
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<div><a href="../cl/crtddmf.htm">Create Distributed Data Management File (CRTDDMF) command</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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