72 lines
5.0 KiB
HTML
72 lines
5.0 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="Licensed program compression and decompression for central site distribution" />
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<meta name="abstract" content="Consider the following information about compressing and decompressing objects before you create the distribution media:" />
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<title>Licensed program compression and decompression for central site distribution</title>
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<body id="rzai4compdecomp"><a name="rzai4compdecomp"><!-- --></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">Licensed program compression and decompression for central site distribution</h1>
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<div><p><span><img src="./delta.gif" alt="Start of change" />Consider the following information about compressing
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and decompressing objects before you create the distribution media:<img src="./deltaend.gif" alt="End of change" /></span></p>
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<p>When you compress licensed programs you receive several benefits including
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saving storage space. When creating distribution media for central site distribution,
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you can leave all the licensed programs that have high usage decompressed.
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Or, you can distribute some of a licensed program in a compressed state and
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some of the program in a decompressed state. </p>
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<p><img src="./delta.gif" alt="Start of change" />Before you create the distribution media, consider these items: <img src="./deltaend.gif" alt="End of change" /></p>
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<ul><li>You can compress both IBM<sup>®</sup> objects and your own user-created objects. IBM program objects
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can be compressed only in the restricted state. Use the Compress Object (CPROBJ)
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control language command to compress objects.</li>
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<li>Programs (*PGM), service programs (*SRVPGM), and modules (*MODULE) automatically
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and permanently decompress the first time they are used.</li>
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<li>The first time a compressed panel (*PNLGRP), menu (*MENU), printer file
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(*FILE with attribute PRTF), or display file (*FILE with attribute DSPF) is
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used, it is temporarily decompressed. If such a temporarily decompressed object
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is used five times or for more than two consecutive days on the same initial
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program load (IPL), it is permanently decompressed.</li>
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<li>Usually, an operation on a compressed object takes a little longer than
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if the object were decompressed. While a very large compressed object is decompressing,
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the system will send the message, <tt>Operation in progress. Please wait.</tt></li>
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</ul>
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<p>IBM recommends the following actions to help you reduce the amount of disk
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space used on the target systems. At the same time, these actions ensure that
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frequently used objects are decompressed:</p>
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<ul><li>Compress everything you are sending to the target systems.</li>
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<li>Use the objects on the central system in the same manner they will be
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used on the target systems. Do so at least five times for panel groups, menus,
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printer files, and display files.</li>
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<li>If you are creating a premastering media, files on CD-ROMs cannot span
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volumes. Compress objects so that the resulting saved file fits on the CD-ROM.</li>
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</ul>
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<p>For more information about compressing and decompressing objects, see <a href="../rzahc/rzahcswscompres.htm">Compressed
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objects and storage space</a>.</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="rzai4concepts.htm" title="Central site distribution is the process of duplicating the software of one iSeries server or duplicating the software of a logical partition, and distributing it to multiple iSeries servers.">Central site distribution concepts</a></div>
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</div>
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</div>
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</body>
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