87 lines
5.3 KiB
HTML
87 lines
5.3 KiB
HTML
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<meta name="abstract" content="The ISO/ANSI standard user labels (UHL and UTL) is 80 bytes in length and is used to identify additional information about the data set. All information in the user labels is user data. The user labels directly follow the header/trailer group and can be up to any number of user labels per data set." />
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<title>ISO/ANSI standard user labels (UHL and UTL)</title>
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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">ISO/ANSI standard user labels (UHL and UTL)</h1>
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<div><p>The ISO/ANSI standard user labels (UHL and UTL) is 80 bytes in
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length and is used to identify additional information about the data set.
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All information in the user labels is user data. The user labels directly
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follow the header/trailer group and can be up to any number of user labels
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per data set.</p>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" width="100%" frame="hsides" border="0" rules="none"><caption>Table 1. Format of the ISO/ANSI Standard
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User Labels (UHL and UTL)</caption><thead align="left"><tr><th align="left" valign="bottom" width="10.126582278481013%" id="d0e22">Offset</th>
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<th align="left" valign="bottom" width="14.466546112115733%" id="d0e24">Data type</th>
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<th align="left" valign="bottom" width="10.849909584086799%" id="d0e26">Length</th>
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<th align="left" valign="bottom" width="64.55696202531645%" id="d0e28">Contents</th>
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</tr>
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</thead>
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<tbody><tr><td align="left" valign="top" width="10.126582278481013%" headers="d0e22 ">0</td>
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<td align="left" valign="top" width="14.466546112115733%" headers="d0e24 ">Character</td>
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<td align="left" valign="top" width="10.849909584086799%" headers="d0e26 ">3</td>
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<td align="left" valign="top" width="64.55696202531645%" headers="d0e28 ">Label identifier</td>
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</tr>
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<tr><td align="left" valign="top" width="10.126582278481013%" headers="d0e22 ">3</td>
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<td align="left" valign="top" width="14.466546112115733%" headers="d0e24 ">Character</td>
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<td align="left" valign="top" width="10.849909584086799%" headers="d0e26 ">1</td>
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<td align="left" valign="top" width="64.55696202531645%" headers="d0e28 ">Label number</td>
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</tr>
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<tr><td align="left" valign="top" width="10.126582278481013%" headers="d0e22 ">4</td>
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<td align="left" valign="top" width="14.466546112115733%" headers="d0e24 ">Character</td>
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<td align="left" valign="top" width="10.849909584086799%" headers="d0e26 ">76</td>
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<td align="left" valign="top" width="64.55696202531645%" headers="d0e28 ">User data</td>
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</tr>
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</tbody>
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</table>
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</div>
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<p>The program describes the contents and function of each of the following
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fields.</p>
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<ul><li>Label identifier <div class="p">The characters identify the type of data set label.
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<dl><dt class="dlterm">UHL</dt>
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<dd>User Header Label (the beginning of a data set)</dd>
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<dt class="dlterm">UTL</dt>
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<dd>User Trailer Label (the end of a data set)</dd>
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</dl>
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</div>
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</li>
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<li>Label number <p>The relative position of this label within the set of
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labels of the same type; there is a no limit of user labels per data set.</p>
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</li>
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<li>User Data <p>This field specifies any user information in the user label.
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The system ignores the information in this set but passes it to a specified
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user label program.</p>
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</li>
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</ul>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="volum.htm" title="This topic describes the volume labels used in the open feedback area.">Volume label fields</a></div>
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</div>
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</div>
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</body>
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