97 lines
6.6 KiB
HTML
97 lines
6.6 KiB
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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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<html lang="en-us" xml:lang="en-us">
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<meta name="DC.Type" content="task" />
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<meta name="DC.Title" content="Create a controlling subsystem" />
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<meta name="abstract" content="IBM supplies two complete controlling subsystem configurations: QBASE (the default controlling subsystem), and QCTL. Only one controlling subsystem can be active on the system at one time. Typically, the IBM supplied subsystem configurations should be sufficient for most business needs. However, you can create your own version of a controlling subsystem and configure it to more closely meet your company's unique needs." />
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<meta name="description" content="IBM supplies two complete controlling subsystem configurations: QBASE (the default controlling subsystem), and QCTL. Only one controlling subsystem can be active on the system at one time. Typically, the IBM supplied subsystem configurations should be sufficient for most business needs. However, you can create your own version of a controlling subsystem and configure it to more closely meet your company's unique needs." />
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<meta name="DC.Relation" scheme="URI" content="rzaksmanagesbs1.htm" />
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<meta name="DC.Relation" scheme="URI" content="rzakscontrollingsbs.htm" />
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<meta name="DC.Relation" scheme="URI" content="../experience/wmrstateabstract53.htm" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 2004-2006" />
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<meta name="DC.Identifier" content="rzakscreatecontrolsbs" />
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<!-- All rights reserved. Licensed Materials Property of IBM -->
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<!-- US Government Users Restricted Rights -->
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<link rel="stylesheet" type="text/css" href="./ic.css" />
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<title>Create a controlling subsystem</title>
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</head>
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<body id="rzakscreatecontrolsbs"><a name="rzakscreatecontrolsbs"><!-- --></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">Create a controlling subsystem</h1>
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<div><p>IBM<sup>®</sup> supplies
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two complete controlling subsystem configurations: QBASE (the default controlling
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subsystem), and QCTL. Only one controlling subsystem can be active on the
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system at one time. Typically, the IBM supplied subsystem configurations should
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be sufficient for most business needs. However, you can create your own version
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of a controlling subsystem and configure it to more closely meet your company's
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unique needs.</p>
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<div class="p">Use the IBM-supplied controlling subsystem QBASE or QCTL as a model
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for creating your own controlling subsystem.<div class="note"><span class="notetitle">Note:</span> If you create your own controlling
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subsystem, you should use a name other than QBASE or QCTL.</div>
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</div>
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<div class="section">The subsystem description for the controlling subsystem should contain
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the following:<ul><li>A routing entry containing:<blockquote><ul><li>Either *ANY or QCMDI as routing data</li>
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<li>QSYS/QCMD as the program to be called</li>
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<li>Class QSYS/QCTL or a user-defined class. (This is because a user, typically
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the system operator, must be able to enter commands to do such things as free
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up storage if the auxiliary storage threshold has been reached.)</li>
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</ul>
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</blockquote>
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</li>
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<li>A workstation entry for the console with a type of *SIGNON (*SIGNON is
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a value for the AT<sup>®</sup> parameter,
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specified on the Add Work Station Entry (<span class="cmdname">ADDWSE</span>) command.)<blockquote>The
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*SIGNON value indicates that the signon display is displayed at the workstation
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when the subsystem is started. This requirement ensures that the subsystem
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has an interactive device for entry of system and subsystem level commands.
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The End System (<span class="cmdname">ENDSYS</span>) command ends the iSeries™ licensed
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program to a single session (or signon display) at the console in the controlling
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subsystem. A subsystem description that does not contain a workstation entry
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for the console cannot be started as a controlling subsystem.</blockquote>
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</li>
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<li>An entry for another workstation: <blockquote>This provides an alternative source
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of controlling input. If a console problem is detected during an attended
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IPL and the If console problem occurs (QSCPFCONS) system value is set to '1',
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the IPL will continue in unattended mode. Then, if the subsystem description
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for the controlling subsystem contains a workstation entry for another workstation,
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that alternate workstation can be used.</blockquote>
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</li>
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<li>A routing entry containing:<blockquote><ul><li>QSYS/QARDRIVE as the program to be called,</li>
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<li>and QSYS/QCTL as the class</li>
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</ul>
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</blockquote>
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</li>
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</ul>
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</div>
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<div class="section">After you have created the controlling subsystem, change the Controlling
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subsystem/library (QCTLSBSD) system value as follows (assuming the description
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is named QGPL/QCTLA):<blockquote><pre>CHGSYSVAL SYSVAL(QCTLSBSD) VALUE('QCTLA QGPL')</pre>
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</blockquote>
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The
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change becomes effective at the next IPL. </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="rzaksmanagesbs1.htm" title="Because jobs run in subsystems, you might need to monitor subsystem activity for potential problems that can affect a job's ability to run.">Manage subsystems</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="rzakscontrollingsbs.htm" title="The controlling subsystem is the interactive subsystem that starts automatically when the system starts, and it is the subsystem through which the system operator controls the system via the system console. It is identified in the Controlling subsystem/library (QCTLSBSD) system value.">The controlling subsystem</a></div>
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</div>
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<div class="relinfo"><strong>Related information</strong><br />
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<div><a href="../experience/wmrstateabstract53.htm">Experience Report: Restricted State</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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