66 lines
3.7 KiB
HTML
66 lines
3.7 KiB
HTML
<?xml version="1.0" encoding="UTF-8"?>
|
|
<!DOCTYPE html
|
|
PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
|
|
<html lang="en-us" xml:lang="en-us">
|
|
<head>
|
|
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
|
|
<meta name="security" content="public" />
|
|
<meta name="Robots" content="index,follow" />
|
|
<meta http-equiv="PICS-Label" content='(PICS-1.1 "http://www.icra.org/ratingsv02.html" l gen true r (cz 1 lz 1 nz 1 oz 1 vz 1) "http://www.rsac.org/ratingsv01.html" l gen true r (n 0 s 0 v 0 l 0) "http://www.classify.org/safesurf/" l gen true r (SS~~000 1))' />
|
|
<meta name="DC.Type" content="concept" />
|
|
<meta name="DC.Title" content="Tape device files" />
|
|
<meta name="abstract" content="Understand how a tape device file works." />
|
|
<meta name="description" content="Understand how a tape device file works." />
|
|
<meta name="DC.Relation" scheme="URI" content="concept.htm" />
|
|
<meta name="DC.Relation" scheme="URI" content="../cl/ovrtapf.htm" />
|
|
<meta name="copyright" content="(C) Copyright IBM Corporation 2004, 2006" />
|
|
<meta name="DC.Rights.Owner" content="(C) Copyright IBM Corporation 2004, 2006" />
|
|
<meta name="DC.Format" content="XHTML" />
|
|
<meta name="DC.Identifier" content="tapacc" />
|
|
<meta name="DC.Language" content="en-us" />
|
|
<!-- All rights reserved. Licensed Materials Property of IBM -->
|
|
<!-- US Government Users Restricted Rights -->
|
|
<!-- Use, duplication or disclosure restricted by -->
|
|
<!-- GSA ADP Schedule Contract with IBM Corp. -->
|
|
<link rel="stylesheet" type="text/css" href="./ibmdita.css" />
|
|
<link rel="stylesheet" type="text/css" href="./ic.css" />
|
|
<title>Tape device files</title>
|
|
</head>
|
|
<body id="tapacc"><a name="tapacc"><!-- --></a>
|
|
<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
|
|
<h1 class="topictitle1">Tape device files</h1>
|
|
<div><p>Understand how a tape device file works.</p>
|
|
<p>A tape device file allows access to data files on tape media. The device
|
|
file contains a description of the format of the data, and a list of attributes
|
|
that describe how the server should process the tape data file.</p>
|
|
<p>It is not necessary to have a separate device file for each tape device.
|
|
Your application program can use a single device file for several different
|
|
tape devices through the use of an Override Tape File (OVRTAPF) command. You
|
|
can associate any number of device files with one device.</p>
|
|
<div class="note"><span class="notetitle">Note:</span> You must vary on the configuration descriptions before
|
|
using them. See the <cite>Local Device Configuration, <span>SC41-5121-00</span></cite> book
|
|
for information about varying on configuration descriptions.</div>
|
|
<div class="section"><h4 class="sectiontitle">IBM-supplied tape device files</h4><p>You can use the following
|
|
tape device files that are shipped with the operating system: </p>
|
|
<ul><li>QTAPE (tape file)</li>
|
|
<li>QTAPSRC (tape source file)</li>
|
|
</ul>
|
|
<p>These files are all program-described as data files in library QGPL.
|
|
The record format names are the same as the file names. The files contain
|
|
default values for most parameters.</p>
|
|
<p>You can create additional tape device
|
|
files to fit your needs. For example, you can create an additional tape device
|
|
file to contain the specific volume and label information for a tape data
|
|
file that several programs can use.</p>
|
|
</div>
|
|
</div>
|
|
<div>
|
|
<div class="familylinks">
|
|
<div class="parentlink"><strong>Parent topic:</strong> <a href="concept.htm" title="Find out how tape files operate on your server.">Concepts</a></div>
|
|
</div>
|
|
<div class="relconcepts"><strong>Related concepts</strong><br />
|
|
<div><a href="../cl/ovrtapf.htm">Override Tape File (OVRTAPF) command</a></div>
|
|
</div>
|
|
</div>
|
|
</body>
|
|
</html> |