114 lines
6.9 KiB
HTML
114 lines
6.9 KiB
HTML
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<meta name="DC.Title" content="CLS parameter" />
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<meta name="abstract" content="The class (CLS) parameter identifies the attributes that define the run time environment of a job." />
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<title>CLS parameter</title>
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</head>
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<body id="rbam6clexpand"><a name="rbam6clexpand"><!-- --></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">CLS parameter</h1>
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<div><p>The class (CLS) parameter identifies the attributes that define
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the run time environment of a job. </p>
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<div class="section"><p>The following attributes are defined in each class:</p>
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<ul><li>Run priority: A number that specifies the priority level assigned to all
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jobs running that use the class. The priority level is used to determine which
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job, of all the jobs competing for system resources, is run next. The value
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can be 1 through 99, where 1 is the highest priority (all jobs having a 1
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priority are run first). </li>
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<li>Time slice: The maximum amount of processor time that the system allows
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the job to run when it is allowed to begin. The time slice indicates the amount
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of time needed for the job to accomplish a meaningful amount of work (the
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time used by the system for reading auxiliary storage is not charged against
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the time slice). When the time slice ends, the job waits while other queued
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jobs of the same or higher priority are allowed to run (up to the time specified
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in their time slices); then the job is given another time slice. </li>
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<li>Purge value: Indicates whether the job step is eligible to be moved from
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main storage to auxiliary storage while the job is waiting for some resource
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before it can continue, or when its time slice is used up and equal or higher
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priority jobs are waiting. </li>
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<li>Default wait time: The default amount of time that the system waits for
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the completion of an instruction that performs a wait. This wait time applies
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to times when an instruction is waiting for a system action, not to the time
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an instruction is waiting for a response from a user. Normally, this would
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be the amount of time you are willing to wait for the system before ending
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the request. If the wait time is exceeded, an error message is passed to the
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job. This default wait time applies only when a wait time is not specified
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in the CL command that causes the wait. <p>The wait time used for allocating
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file resources is specified in the file description and can be overridden
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by an override command. It specifies that the wait time specified in the class
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object is used. If file resources are not available when the file is opened,
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the system waits for them until the wait time ends.</p>
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<div class="note"><span class="notetitle">Note:</span> The class attributes
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apply to each routing step of a job. Most jobs have only one routing step,
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but if the job is rerouted (because of something like the <span class="cmdname">Remote
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Job</span> or <span class="cmdname">Transfer Job</span> command) the
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class attributes will be reset.</div>
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</li>
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<li>Maximum CPU time: The maximum amount of processor time (the sum of the
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time slices if they differ, or time slice period multiplied by number of time
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slices if they are equal) allowed for a job's routing step to complete processing.
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If the job's routing step is not completed in this amount of time, it is ended,
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and a message is written to the job log. </li>
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<li>Maximum temporary storage: The maximum amount of temporary storage that
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can be used by a job's routing step. This temporary storage is used for the
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programs that run in the job, for the system objects used to support the job,
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and for temporary objects created by the job.</li>
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</ul>
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<p>The system is shipped with a set of classes that define the attributes
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for several job processing environments. Other classes can be created by the <span class="cmdname">Create
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Class (CRTCLS)</span> command; any class can be displayed or deleted by
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the respective <span class="cmdname">Display Class (DSPCLS)</span> and <span class="cmdname">Delete
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Class (DLTCLS)</span> commands.</p>
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</div>
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<div class="section"><h4 class="sectiontitle">Values allowed</h4><dl><dt class="dlterm"><var class="varname">qualified-class-name</var></dt>
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<dd>Specify the name of the class, optionally qualified by the name of the
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library in which the class is stored. If the class name is not qualified and
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the CLS parameter is in the CRTCLS command, the class object is stored in
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*CURLIB; otherwise, the library list (*LIBL) is used to find the class name.</dd>
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</dl>
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</div>
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<div class="section"><h4 class="sectiontitle">Classes</h4><p>The following classes (by name) are supplied
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with the system:</p>
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<dl><dt class="dlterm"> <strong>QGPL/QBATCH</strong> </dt>
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<dd>For use by batch jobs </dd>
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<dt class="dlterm"> <strong>QSYS/QCTL</strong> </dt>
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<dd>For use by the controlling subsystem </dd>
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<dt class="dlterm"> <strong>QGPL/QINTER</strong> </dt>
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<dd>For use by interactive jobs </dd>
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<dt class="dlterm"> <strong>QGPL/QPGMR</strong> </dt>
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<dd>For use by the programming subsystem </dd>
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<dt class="dlterm"> <strong>QGPL/QSPL</strong> </dt>
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<dd>For use by the spooling subsystem printer writer </dd>
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<dt class="dlterm"> <strong>QGPL/QSPL2</strong> </dt>
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<dd>For general spooling use in the base system pool</dd>
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</dl>
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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="rbam6expand.htm" title="This section contains the expanded descriptions of some of the parameters commonly used in the CL commands.">Commonly used parameters</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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