80 lines
7.3 KiB
HTML
80 lines
7.3 KiB
HTML
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<title>System jobs</title>
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<body id="rzakssystemjobs"><a name="rzakssystemjobs"><!-- --></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">System jobs</h1>
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<div><p>System jobs are created by the operating system to control system
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resources and perform system functions. System jobs run when the iSeries™ server
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starts or when an independent disk pool is varied on. These jobs perform
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a variety of tasks from starting the operating system, to starting and ending
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subsystems, to scheduling jobs.</p>
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</div>
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<div>
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<ul class="ullinks">
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<li class="ulchildlink"><strong><a href="rzakssystemstartupjobs.htm">System startup jobs</a></strong><br />
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<dfn class="term">Startup jobs</dfn> are system jobs that run
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at IPL. They handle the tasks that get the operating system environment up
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and ready for work. The following is a list of the various system startup
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jobs.</li>
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<li class="ulchildlink"><strong><a href="rzakssystemarbiters.htm">System arbiters</a></strong><br />
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The system arbiters (QSYSARB and QSYSARB2 through QSYSARB5), started by an SCPF system job, provide the environment for the running of high-priority functions. They allow subsystems to start and end and keep track of the state of the system (for example, a restricted state).</li>
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<li class="ulchildlink"><strong><a href="rzakssystemcommjob.htm">System communication jobs</a></strong><br />
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This topic contains a list of system communication jobs.</li>
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<li class="ulchildlink"><strong><a href="rzaksdatabasejobs.htm">Database jobs</a></strong><br />
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The following is a list of database jobs.</li>
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<li class="ulchildlink"><strong><a href="rzakssystemotherjob.htm">Other system jobs</a></strong><br />
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This article contains is a list of other kinds of system jobs.</li>
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</ul>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rzaksjobtypeoverview.htm" title="The iSeries server processes several different types of jobs.">Job types</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="rzaksaboutautostartjob.htm" title="An autostart job is a batch job doing repetitive work, one-time initialization work that is associated with a particular subsystem, initializes functions for an application, or provides centralized service functions for other jobs in the same subsystem. An autostart job in the controlling subsystem can be used to start other subsystems (as does the IBM-supplied controlling subsystem). The autostart jobs associated with a subsystem are automatically started each time the subsystem is started.">Autostart jobs</a></div>
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<div><a href="rzaksbatchjob.htm" title="A batch job is a predefined group of processing actions submitted to the system to be performed with little or no interaction between the user and the system. Jobs that do not require user interaction to run can be processed as batch jobs. A batch job typically is a low priority job and can require a special system environment in which to run.">Batch jobs</a></div>
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<div><a href="rzaksaboutcommunicationjobs.htm" title="A communications job is a batch job that is started by a program start request from a remote system. Job processing involves a communication request and appropriate specifications.">Communication jobs</a></div>
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<div><a href="rzaksinteractivejob.htm" title="An interactive job is a job that starts when a user signs on to a display station and ends when the user signs off. For the job to run, the subsystem searches for the job description, which can be specified in the workstation entry or the user profile.">Interactive jobs</a></div>
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<div><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><a href="rzaksreaderandwriterjob.htm" title="A reader job is a spooled input job, and a writer job is a spooled output job.">Reader and writer jobs</a></div>
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<div><a href="rzaksserverjobs.htm" title="Server jobs are jobs that run continuously in the background on the iSeries system.">Server jobs</a></div>
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</div>
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</div>
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</body>
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