70 lines
3.6 KiB
HTML
70 lines
3.6 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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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<meta name="security" content="public" />
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<meta name="Robots" content="index,follow" />
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<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))' />
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<meta name="DC.Type" content="concept" />
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<meta name="DC.Title" content="Feedback area layouts" />
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<meta name="abstract" content="This information discusses open and I/O feedback areas." />
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<meta name="description" content="This information discusses open and I/O feedback areas." />
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<meta name="DC.Relation" scheme="URI" content="reference.htm" />
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<meta name="DC.Relation" scheme="URI" content="feedb.htm" />
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<meta name="DC.Relation" scheme="URI" content="fedbk.htm" />
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<meta name="DC.Relation" scheme="URI" content="../dm/rbal3kickoff.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.Format" content="XHTML" />
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<meta name="DC.Identifier" content="ioifa" />
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<meta name="DC.Language" content="en-us" />
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<!-- All rights reserved. Licensed Materials Property of IBM -->
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<!-- US Government Users Restricted Rights -->
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<!-- Use, duplication or disclosure restricted by -->
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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>Feedback area layouts</title>
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</head>
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<body id="ioifa"><a name="ioifa"><!-- --></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">Feedback area layouts</h1>
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<div><p><span>This information discusses open and I/O
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feedback areas.</span></p>
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<p><span>Figures in this topic describe the
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open and I/O feedback areas associated with tape or diskette files.</span> The
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program presents the following information for each item in these feedback
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areas:</p>
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<ul><li>Offset, which is the number of bytes from the start of the feedback area
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to the location of each item</li>
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<li>Data Type</li>
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<li>The program gives the length in number of bytes</li>
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<li>Contents, which is the description of the item and the valid values for
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it</li>
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<li>File type, which is an indication of what file types are valid for each
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item</li>
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</ul>
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<p>The support provided by the high-level language you are using determines
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how to access this information and how the program represents the data types.
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See your high-level language manual for more information.</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="feedb.htm">Open feedback area</a></strong><br />
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<span>Learn what open feedback areas consist
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of.</span></li>
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<li class="ulchildlink"><strong><a href="fedbk.htm">I/O feedback area</a></strong><br />
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Find out when the I/O feedback area is updated and what it is updated with.</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="reference.htm" title="This information provides the control language (CL) commands and the feedback area layout information for tape files.">Reference</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="../dm/rbal3kickoff.htm">File management</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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