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<section id="how-does-the-deduplication-work">
<span id="deduplication"></span><h1>Wie funktioniert die Duplikatentfernung?<a class="headerlink" href="#how-does-the-deduplication-work" title="Link to this heading">¶</a></h1>
<p>Der Prozess der Entfernung redundanter Dateien und deren Ersetzung durch NTFS-Hardlinks mit TreeSize wird als <strong>Deduplication</strong> bezeichnet. Dies reduziert den Speicherplatz, der durch Ihre Duplikatdateien blockiert ist.</p>
<p>Anstatt dass jede der Dateien individuellen Speicherplatz auf Ihrer Festplatte einnimmt, entfernt TreeSize alle doppelten Dateien und behält nur eine von ihnen.</p>
<p>Die entfernten Dateien werden durch Hardlinks ersetzt, die dann auf die verbleibenden Daten verweisen (siehe: <a class="reference internal" href="notesonntfs.html#notesonntfs"><span class="std std-ref">Hinweise zu NTFS</span></a>).</p>
<p>Die Daten werden nun von allen Hardlinks für diese Datei gemeinsam genutzt, wie im Bild unten gezeigt.</p>
<a class="reference internal image-reference" href="_images/Deduplication.png"><img alt="_images/Deduplication.png" class="align-center" src="_images/Deduplication.png" style="width: 100%;" />
</a>
<p>Diese Hardlinks können wie jede normale Datei verwendet werden. Sie werden keinen Unterschied bemerken, außer dass die Daten jetzt zwischen den anderen Links geteilt werden. Tatsächlich unterscheiden sie sich nicht von einer normalen Datei, außer dass sie keinen eigenen Speicherplatz beanspruchen.</p>
<section id="which-of-the-duplicate-files-will-be-replaced">
<h2>Welche der doppelten Dateien wird ersetzt?<a class="headerlink" href="#which-of-the-duplicate-files-will-be-replaced" title="Link to this heading">¶</a></h2>
<p>Wenn Sie alle Dateien einer Duplikatgruppe markieren, wählt TreeSize die Datei mit dem neuesten „Zuletzt geändert“-Datum aus und verwendet sie als „Master“ für diese Gruppe. Alle anderen Dateien werden entfernt und durch Hardlinks ersetzt, die auf die Master-Datei verweisen.</p>
<p>Wenn Sie eine Master-Datei manuell auswählen möchten, können Sie eine der Dateien in einer Duplikatgruppe nicht markieren. Diese Datei wird dann nicht ersetzt, sondern stattdessen als Master verwendet.</p>
<div class="admonition note">
<p class="admonition-title">Bemerkung</p>
<p>Leider zeigt der Windows Explorer nicht die Größenunterschiede für eine deduplizierte Datei oder den Ordner, in dem sie sich befindet. <a class="reference external" href="https://knowledgebase.jam-software.com/7259">Lesen Sie unsere Wissensdatenbank</a> für weitere Informationen.</p>
</div>
<div class="admonition note">
<p class="admonition-title">Bemerkung</p>
<p>Sie können keine Hardlinks verwenden, um Dateien zu ersetzen, die sich auf verschiedenen Festplatten befinden.</p>
</div>
<div class="admonition note">
<p class="admonition-title">Bemerkung</p>
<p>Sie können keine Hardlinks verwenden, um Dateien zu ersetzen, die sich auf verschiedenen Festplatten befinden.</p>
</div>
<div class="admonition note">
<p class="admonition-title">Bemerkung</p>
<p>Sie können keine Hardlinks verwenden, um Dateien zu ersetzen, die sich auf verschiedenen Festplatten befinden.</p>
</div>
<div class="admonition note">
<p class="admonition-title">Bemerkung</p>
<p>Alle Hardlinks, die auf dieselbe Datei verweisen, teilen sich die gleiche „Sicherheitsbeschreibung“ (Zugriffsberechtigungen). Die Deduplizierung wendet einen einheitlichen Satz von Berechtigungen auf die verbleibende physische Datei an.</p>
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<li><a class="reference internal" href="#">Wie funktioniert die Duplikatentfernung?</a><ul>
<li><a class="reference internal" href="#which-of-the-duplicate-files-will-be-replaced">Welche der doppelten Dateien wird ersetzt?</a></li>
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