74 lines
7.7 KiB
HTML
74 lines
7.7 KiB
HTML
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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="concept" />
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<meta name="DC.Title" content="Prestart job entries" />
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<meta name="abstract" content="You define the prestart job by using a prestart job entry. A prestart job entry does not affect the device allocation or program start request assignment." />
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<meta name="description" content="You define the prestart job by using a prestart job entry. A prestart job entry does not affect the device allocation or program start request assignment." />
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<meta name="DC.Relation" scheme="URI" content="rzaksprestarttype.htm" />
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<meta name="DC.Relation" scheme="URI" content="rzaksprestartjobname.htm" />
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<meta name="DC.Relation" scheme="URI" content="rzaksaboutprestartjobs.htm" />
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<meta name="DC.Relation" scheme="URI" content="rzaksprestrtjobsecurity.htm" />
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<meta name="DC.Relation" scheme="URI" content="rzaksprestartjobtips.htm" />
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<meta name="DC.Relation" scheme="URI" content="rzaksprestjobspoolfile.htm" />
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<meta name="DC.Relation" scheme="URI" content="rzaksaddprestrtjobentry.htm" />
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<meta name="DC.Relation" scheme="URI" content="rzakschgprestrtentry.htm" />
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<meta name="DC.Relation" scheme="URI" content="rzaksrmvprestrtjobentry.htm" />
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<meta name="DC.Relation" scheme="URI" content="rzaksfindperforminfo.htm" />
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<meta name="DC.Relation" scheme="URI" content="../experience/work2abstract.htm" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 2004-2006" />
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<meta name="DC.Rights.Owner" content="(C) Copyright IBM Corporation 2004-2006" />
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<meta name="DC.Identifier" content="rzaksprestartentry" />
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<!-- GSA ADP Schedule Contract with IBM Corp. -->
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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>Prestart job entries</title>
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</head>
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<body id="rzaksprestartentry"><a name="rzaksprestartentry"><!-- --></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">Prestart job entries</h1>
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<div><p>You define the prestart job by using a prestart job entry. A prestart
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job entry does not affect the device allocation or program start request assignment. </p>
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<p>The job attributes of a prestart job are not changed by the subsystem when
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a program start request attaches to the prestart job. However, server jobs
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generally change job attributes to those of the swapped user profile.</p>
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<p>The Change Prestart Job (<span class="cmdname">CHGPJ</span>) command
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allows the prestart job to change some of the job attributes to those of the
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job description (specified in the job description associated with the user
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profile of the program start request or in the job description specified in
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the prestart job entry).</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="rzaksprestarttype.htm" title="A prestart job is a batch job that starts running before a work request is received. The prestart jobs are started before any other types of jobs in a subsystem. Prestart jobs are different from other jobs because they use prestart job entries (part of the subsystem description) to determine which program, class, and storage pool to use when they are started.">Prestart jobs</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="rzaksprestartjobname.htm" title="The fully qualified three-part name of the prestart job never changes once a prestart job is started. The user name of the fully qualified three-part job name always contains the user profile under which the prestart job is started.">Prestart job name</a></div>
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<div><a href="rzaksaboutprestartjobs.htm" title="A prestart job is a job that is started before the work arrives. This allows the system to handle a request for work without the delay caused by starting a new job.">How prestart jobs work</a></div>
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<div><a href="rzaksprestrtjobsecurity.htm" title="When a prestart job starts, it runs under the prestart job user profile. When a program start request attaches to a prestart job, the prestart job user profile is replaced by the program start request user profile. When the prestart job is finished handling a program start request, the program start request user profile is replaced by the prestart job user profile. If there is a group profile associated with the user profile, the group profile is also exchanged.">Security and prestart jobs</a></div>
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<div><a href="rzaksprestartjobtips.htm" title="The prestart job should do as much work as possible before it attempts to acquire an ICF program device or accept a CPI Communications conversation. The more work it does initially (allocating objects, opening database files, and so on), the less it will need to do when a program start request is received, therefore giving the transaction faster response time. The following are some additional performance considerations when using prestart jobs:">Performance tips for prestart jobs</a></div>
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<div><a href="rzaksprestjobspoolfile.htm" title="If a spool file is opened before a prestart job handles any program start request, the spool file is associated with the prestart job entry user profile; otherwise it is associated with the current program start request user profile.">Spooled file and the prestart job entry</a></div>
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<div><a href="rzaksfindperforminfo.htm" title="This topic provides steps to help you answer the question, "How do I find the real user of a prestart job and determine the resources used by that prestart job?"">Prestart job investigation</a></div>
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</div>
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<div class="reltasks"><strong>Related tasks</strong><br />
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<div><a href="rzaksaddprestrtjobentry.htm" title="Prestart job entries identify prestart jobs that may be started when the subsystem is started or when the Start Prestart Jobs (STRPJ) command is entered. You can add prestart job entries to the subsystem description by using the character-based interface.">Add prestart job entries</a></div>
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<div><a href="rzakschgprestrtentry.htm" title="You can change a prestart job entry in the specified subsystem description. The subsystem may be active when the prestart job entry is changed. Changes made to the entry when the subsystem is active are reflected over time. Any new prestart jobs started after the command is issued use the new job-related values. This command identifies prestart jobs that are started when the subsystem is started or when the Start Prestart Jobs (STRPJ) command is issued.">Change prestart entries</a></div>
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<div><a href="rzaksrmvprestrtjobentry.htm" title="You can remove prestart job entries from the subsystem description by using the character-based interface. A prestart job entry cannot be removed if any currently active jobs were started using the entry.">Remove prestart job entries</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/work2abstract.htm">Tuning prestart job entries</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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