89 lines
5.2 KiB
HTML
89 lines
5.2 KiB
HTML
<?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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<html lang="en-us" xml:lang="en-us">
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<meta name="DC.Type" content="reference" />
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<meta name="DC.Title" content="Installation processes" />
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<meta name="abstract" content="The system determines the type of installation process it uses based on available system resources and the type of product being installed." />
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<meta name="description" content="The system determines the type of installation process it uses based on available system resources and the type of product being installed." />
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<meta name="copyright" content="(C) Copyright IBM Corporation 2004, 2006" />
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<link rel="stylesheet" type="text/css" href="./ibmdita.css" />
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<link rel="stylesheet" type="text/css" href="./ic.css" />
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<title>Installation processes</title>
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</head>
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<body id="installprocess"><a name="installprocess"><!-- --></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">Installation processes</h1>
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<div><p>The system determines the type of installation process it uses
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based on available system resources and the type of product being installed.</p>
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<div class="section"><p>A <em>single-process installation</em> is when licensed programs
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are installed one at a time (sequentially). A <em>multiprocess installation</em> is
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when the system starts multiple jobs to perform the installation of two or
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more licensed programs at the same time.</p>
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</div>
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<div class="section"><p><span class="keyword">Licensed Internal Code</span> and the
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base part of the operating system are always installed
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using single-process installation. Licensed programs (including libraries
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QGPL and QUSRSYS and optional parts of the operating system) can be installed
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using either single-process or multiprocess installation.</p>
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</div>
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<div class="section"><p>If you are installing only one licensed program, the system uses
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single-process installation. If you are installing more than one licensed
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program, multiprocess installation is used if system resources are available.
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If system resources are not available, single-process installation is used.
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A single-process installation is used when a system's main storage or auxiliary
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storage is limited and when a licensed program exceeds the requirements for
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multiprocess installation. For any set of licensed programs, if the system
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must use single-process installation, the installation takes longer. </p>
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</div>
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<div class="section"><p id="installprocess__multov"><a name="installprocess__multov"><!-- --></a><strong>Multiprocess installation</strong></p>
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</div>
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<div class="section"><div class="p">The operating system determines if your system configuration has
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enough system capacity to use multiprocess installation to install licensed
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programs. If your system has the required resources, the licensed programs
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are installed concurrently by doing the following tasks: <ul><li>Loading the licensed program installation files from the media to temporary
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save files.</li>
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<li>Using multiple batch jobs to concurrently install licensed programs from
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the save files. The save files are deleted during the installation process
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when they are no longer needed.</li>
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</ul>
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</div>
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</div>
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<div class="section"><div class="p">During installation, a status panel indicates the licensed programs
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that are currently being installed from save files. The display lists the
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licensed programs and the type of item being installed for each, as follows:
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<dl><dt class="dlterm">*PGM</dt>
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<dd>Program objects</dd>
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<dt class="dlterm">*LNG</dt>
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<dd>Language objects</dd>
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</dl>
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</div>
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</div>
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<div class="section"><p>If your system does not have the required resources for <span>a
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multiprocess installation</span>, the licensed programs are installed sequentially
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from the installation media (single-process). <span>In single-process installation,</span> the
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status panel indicates the licensed program that is currently being installed
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from the media.</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="rzahcswsesttime.htm" title="Use this information to help you estimate the time it will take to install your new release.">Estimates for software installation time</a></div>
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</div>
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</div>
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</body>
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</html> |