ibm-information-center/dist/eclipse/plugins/i5OS.ic.rzaks_5.4.0.1/rzaksreaderandwriterjob.htm

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<h1 class="topictitle1">Reader and writer jobs</h1>
<div><p>A <dfn class="term">reader job</dfn> is a spooled input job,
and a writer job is a spooled output job.</p>
<dl><dt class="dlterm">Reader</dt>
<dd> A reader job reads batch job streams from database files, and places
the jobs on a job queue. The reader job is part of input spooling and is an
IBM-supplied program.</dd>
</dl>
<dl><dt class="dlterm">Writer</dt>
<dd>A writer job writes records from printer output files (also called spooled
files) to a printer. The writer job is an IBM-supplied program, started in
the spooling subsystem where it selects files from the output queue to be
printed.</dd>
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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 class="relconcepts"><strong>Related concepts</strong><br />
<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>
<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>
<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>
<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>
<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>
<div><a href="rzaksserverjobs.htm" title="Server jobs are jobs that run continuously in the background on the iSeries system.">Server jobs</a></div>
<div><a href="rzakssystemjobs.htm" title="System jobs are created by the operating system to control system resources and perform system functions. System jobs run when the iSeries server starts or when an independent disk pool is varied on. These jobs perform a variety of tasks from starting the operating system, to starting and ending subsystems, to scheduling jobs.">System jobs</a></div>
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