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<body class="manpage">
<div id="header">
<h1>
nvme-sndk-vs-device-waf(1) Manual Page
</h1>
<h2>NAME</h2>
<div class="sectionbody">
<p>nvme-sndk-vs-device-waf -
   Calculates the device write amplification factor and prints both TLC and SLC results
</p>
</div>
</div>
<div id="content">
<div class="sect1">
<h2 id="_synopsis">SYNOPSIS</h2>
<div class="sectionbody">
<div class="verseblock">
<pre class="content"><em>nvme sndk vs-device-waf</em> &lt;device&gt; [--output-format=&lt;normal|json&gt; -o &lt;normal|json&gt;]
                        [--namespace-id=&lt;nsid&gt; | -n &lt;nsid&gt;]</pre>
<div class="attribution">
</div></div>
</div>
</div>
<div class="sect1">
<h2 id="_description">DESCRIPTION</h2>
<div class="sectionbody">
<div class="paragraph"><p>For the NVMe device given, calculates the device TLC and SLC write
amplification factor.</p></div>
<div class="paragraph"><p>The &lt;device&gt; parameter is mandatory and may be either the NVMe character
device (ex: /dev/nvme0) or block device (ex: /dev/nvme0n1).</p></div>
<div class="paragraph"><p>This will only work on Sandisk devices supporting this feature.
Results for any other device are undefined.</p></div>
<div class="paragraph"><p>On success it returns 0, error code otherwise.</p></div>
</div>
</div>
<div class="sect1">
<h2 id="_options">OPTIONS</h2>
<div class="sectionbody">
<div class="dlist"><dl>
<dt class="hdlist1">
-o &lt;fmt&gt;
</dt>
<dt class="hdlist1">
--output-format=&lt;fmt&gt;
</dt>
<dd>
<p>
        Set the reporting format to <em>normal</em>, or
        <em>json</em>. Only one output format can be used at a time.
        Default is normal.
</p>
</dd>
<dt class="hdlist1">
-n &lt;nsid&gt;
</dt>
<dt class="hdlist1">
--namespace-id=&lt;nsid&gt;
</dt>
<dd>
<p>
        Sets the command&#8217;s nsid value to the given nsid. Defaults to
        0xffffffff if not given. This option may not affect anything
        depending on the log page, which may or may not be specific to
        a namespace.
</p>
</dd>
</dl></div>
</div>
</div>
<div class="sect1">
<h2 id="_examples">EXAMPLES</h2>
<div class="sectionbody">
<div class="ulist"><ul>
<li>
<p>
Has the program issue sndk vs-device-waf plugin Command :
</p>
<div class="listingblock">
<div class="content">
<pre><code># nvme sndk vs-device-waf /dev/nvme0</code></pre>
</div></div>
</li>
</ul></div>
</div>
</div>
<div class="sect1">
<h2 id="_nvme">NVME</h2>
<div class="sectionbody">
<div class="paragraph"><p>Part of the nvme-user suite.</p></div>
</div>
</div>
</div>
<div id="footnotes"><hr /></div>
<div id="footer">
<div id="footer-text">
Last updated
 2025-11-19 00:00:00 UTC
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</div>
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