73 lines
4.4 KiB
HTML
73 lines
4.4 KiB
HTML
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<!DOCTYPE html
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<meta name="DC.Type" content="concept" />
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<meta name="DC.Title" content="Specify where to store the data (UNIT) parameter" />
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<meta name="abstract" content="The system finds a place for the file on auxiliary storage. You can specify where to store the file with the UNIT parameter." />
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<meta name="description" content="The system finds a place for the file on auxiliary storage. You can specify where to store the file with the UNIT parameter." />
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<meta name="DC.subject" content="data, storing, storage, specifying location" />
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<meta name="keywords" content="data, storing, storage, specifying location" />
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<meta name="DC.Identifier" content="rbafodatal" />
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<title>Specify where to store the data (UNIT) parameter</title>
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</head>
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<body id="rbafodatal"><a name="rbafodatal"><!-- --></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">Specify where to store the data (UNIT) parameter</h1>
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<div><p>The system finds a place for the file on auxiliary storage. You
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can specify where to store the file with the UNIT parameter.</p>
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<div class="note"><span class="notetitle">Note:</span> Effective for Version 3 Release 6 the UNIT parameter is a no-operation
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(NOP) function for the following commands: <ul><li>Create Physical File (CRTPF)</li>
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<li>Create Logical File (CRTLF)</li>
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<li>Create Source Physical File (CRTSRCPF)</li>
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<li>Change physical File (CHGPF)</li>
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<li>Change Logical File (CHGLF)</li>
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<li>Change Source Physical File (CHGSRCPF)</li>
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</ul>
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The parameter can still be coded; its presence does not cause an error.
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It will be ignored.</div>
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<div class="p"> The
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UNIT parameter specifies: <ul><li>The location of data records in physical files.</li>
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<li>The access path for both physical files and logical files.</li>
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</ul>
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</div>
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<div class="p">The data is placed on different units if: <ul><li>There is not enough space on the unit.</li>
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<li>The unit is not valid for your system.</li>
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</ul>
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An informational message indicating that the file was not placed on
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the requested unit is sent when file members are added. (A message is <em>not</em> sent
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when the file member is extended.)</div>
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<div class="section" id="rbafodatal__rbafonoid12"><a name="rbafodatal__rbafonoid12"><!-- --></a><h4 class="sectiontitle">UNIT parameter tips</h4><p>In general,
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you should not specify the UNIT parameter. Let the system place the file on
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the disk unit of its choosing. This is usually better for performance, and
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relieves you of the task of managing auxiliary storage. If you specify a unit
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number and also an auxiliary storage pool, the unit number is ignored.</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="rbafocrtatt.htm" title="When you create a database file, database attributes are stored with the file and members. You specify attributes with database command parameters.">Specify database file and member attributes</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="../rzaly/rzalyoverview.htm">Independent disk pools</a></div>
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</div>
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</div>
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</body>
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