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<body class="manpage">
<div id="header">
<h1>
nvme-lockdown(1) Manual Page
</h1>
<h2>NAME</h2>
<div class="sectionbody">
<p>nvme-lockdown -
   Send an NVMe Lockdown command to prohibit or allow the execution of command
</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-lockdown</em> &lt;device&gt; [--ofi=&lt;ofi&gt; | -O &lt;ofi&gt;]
                        [--ifc=&lt;ifc&gt; | -f &lt;ifc&gt;]
                        [--prhbt=&lt;prhbt&gt; | -p &lt;prhbt&gt;]
                        [--scp=&lt;scp&gt; | -s &lt;scp&gt;]
                        [--uuid=&lt;UUID_Index&gt; | -U &lt;UUID_Index&gt;]
                        [--output-format=&lt;fmt&gt; | -o &lt;fmt&gt;] [--verbose | -v]
                        [--timeout=&lt;timeout&gt; | -t &lt;timeout&gt;]</pre>
<div class="attribution">
</div></div>
</div>
</div>
<div class="sect1">
<h2 id="_description">DESCRIPTION</h2>
<div class="sectionbody">
<div class="paragraph"><p>The Lockdown command is used to control the Command and Feature Lockdown
capability which configures the prohibition or allowance of execution of the
specified command or Set Features command targeting a specific Feature
Identifier.</p></div>
</div>
</div>
<div class="sect1">
<h2 id="_options">OPTIONS</h2>
<div class="sectionbody">
<div class="dlist"><dl>
<dt class="hdlist1">
-O &lt;ofi&gt;
</dt>
<dt class="hdlist1">
--ofi=&lt;ofi&gt;
</dt>
<dd>
<p>
        Opcode or Feature Identifier(OFI) specifies the command opcode or Set
        Features Feature Identifier identified by the Scope field.
</p>
</dd>
<dt class="hdlist1">
-f &lt;ifc&gt;
</dt>
<dt class="hdlist1">
--ifc=&lt;ifc&gt;
</dt>
<dd>
<p>
        Interface (INF) field identifies the interfaces affected by this command.
</p>
</dd>
<dt class="hdlist1">
-p &lt;prhbt&gt;
</dt>
<dt class="hdlist1">
--prhbt=&lt;prhbt&gt;
</dt>
<dd>
<p>
        Prohibit (PRHBT) bit specifies whether to prohibit or allow the command
        opcode or Set Features Feature Identifier specified by this command.
</p>
</dd>
<dt class="hdlist1">
-s &lt;scp&gt;
</dt>
<dt class="hdlist1">
--scp=&lt;scp&gt;
</dt>
<dd>
<p>
        Scope (SCP) field specifies the contents of the Opcode or Feature Identifier field.
</p>
</dd>
<dt class="hdlist1">
-U &lt;UUID_Index&gt;
</dt>
<dt class="hdlist1">
--uuid=&lt;UUID_Index&gt;
</dt>
<dd>
<p>
        UUID Index - If this field is set to a non-zero value, then the value of
        this field is the index of a UUID in the UUID List that is used by the command.
        If this field is cleared to 0h,then no UUID index is specified.
</p>
</dd>
<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>, <em>json</em> or <em>binary</em>. Only one
        output format can be used at a time.
</p>
</dd>
<dt class="hdlist1">
-v
</dt>
<dt class="hdlist1">
--verbose
</dt>
<dd>
<p>
        Increase the information detail in the output.
</p>
</dd>
<dt class="hdlist1">
-t &lt;timeout&gt;
</dt>
<dt class="hdlist1">
--timeout=&lt;timeout&gt;
</dt>
<dd>
<p>
        Override default timeout value. In milliseconds.
</p>
</dd>
</dl></div>
</div>
</div>
<div class="sect1">
<h2 id="_examples">EXAMPLES</h2>
<div class="sectionbody">
<div class="paragraph"><p>No examples yet.</p></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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