52 lines
3.3 KiB
HTML
52 lines
3.3 KiB
HTML
<?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="DC.Type" content="concept" />
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<meta name="DC.Title" content="Optical directories and files" />
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<meta name="abstract" content="Information on an optical volume is organized into units called directories and the basic element of optical storage is the optical file." />
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<meta name="description" content="Information on an optical volume is organized into units called directories and the basic element of optical storage is the optical file." />
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<meta name="DC.Relation" scheme="URI" content="rzam4optstgcncpts.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="rzam4opticaldir" />
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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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<!-- 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>Optical directories and files</title>
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</head>
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<body id="rzam4opticaldir"><a name="rzam4opticaldir"><!-- --></a>
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<img src="./delta.gif" alt="Start of change" /><!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
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<h1 class="topictitle1">Optical directories and files</h1>
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<div><p>Information on an optical volume is organized into units called
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directories and the basic element of optical storage is the optical file.</p>
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<p>A directory is a logical partition that can contain files and other directories
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called subdirectories. Every volume contains at least one directory called
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the root directory. You are not required to have other directories below the
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root directory. Directories are a convenient way to keep files organized.</p>
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<p>Any data that is available to application programs can be stored in or
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retrieved from optical files in the form of a data stream. Optical files have
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the following characteristics:</p>
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<ul><li>Data is stored in a stream-file format.</li>
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<li>Data is independent of format and record structures.</li>
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<li>Data is accessed through byte offsets and lengths. </li>
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<li>Data is recognized and managed by the application that creates the file.</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="rzam4optstgcncpts.htm" title="This topic lists the commands available to system administrators and programmers through the primary menu.">Concepts for optical storage</a></div>
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</div>
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</div>
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<img src="./deltaend.gif" alt="End of change" /></body>
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</html> |