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<h1 class="topictitle1">Access data from a tape device</h1>
<div><p>Understand the prerequisites before accessing data from a tape
device.</p>
<div class="section"> <p>To access data from a tape device on the
system, a device description must exist for each tape device and tape media
library device to describe the device to the system.</p>
<p>After
you have the above objects set up, you can then open the tape device file
and proceed by using your application program to read the data on that file.</p>
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<ul class="ullinks">
<li class="ulchildlink"><strong><a href="setdd.htm">Set up a device description</a></strong><br />
<span>You can specify the device description
using the Create Device Description (CRTDEVTAP) command. </span></li>
<li class="ulchildlink"><strong><a href="setddmed.htm">Set up a device description for each media library device</a></strong><br />
<span>You can specify the device description using the Create Device
Media Library (CRTDEVMLB) command. </span></li>
<li class="ulchildlink"><strong><a href="settdf.htm">Set up a tape device file</a></strong><br />
<span>You can create the tape device files by
using the Create Tape File (CRTTAPF) command.</span></li>
</ul>
<div class="familylinks">
<div class="parentlink"><strong>Parent topic:</strong> <a href="usetfile.htm" title="Tape files are used for storing and accessing data on tape media.">Use tape files</a></div>
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