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<body class="manpage">
<div id="header">
<h1>
nvme-dsm(1) Manual Page
</h1>
<h2>NAME</h2>
<div class="sectionbody">
<p>nvme-dsm -
   Send NVMe Data Set Management, return 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 dsm</em> &lt;device&gt; [--namespace-id=&lt;nsid&gt; | -n &lt;nsid&gt;]
                        [--ctx-attrs=&lt;attribute-list,&gt; | -a &lt;attribute-list,&gt;]
                        [--blocks=&lt;nlb-list,&gt; | -b &lt;nlb-list,&gt;]
                        [--slbs=&lt;slba-list,&gt; | -s &lt;slba-list,&gt;]
                        [--ad=&lt;deallocate&gt; | -d &lt;deallocate&gt;]
                        [--idw=&lt;write&gt; | -w &lt;write&gt;] [--idr=&lt;read&gt; | -r &lt;read&gt;]
                        [--cdw11=&lt;cdw11&gt; | -c &lt;cdw11&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>For the NVMe device given, sends a Data Set Management command and
provides the result and returned structure.</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 a namespace block device (ex: /dev/nvme0n1).
If the character device is given, the <code>'--namespace-id'</code> option is
mandatory, otherwise it will use the ns-id of the namespace for the block
device you opened. For block devices, the ns-id used can be overridden
with the same option.</p></div>
<div class="paragraph"><p>You must specify at least one of the values for range list. If the range
lists provided do not list the same number of elements, the default
values for the remaining in the range will be set to 0.</p></div>
<div class="paragraph"><p>The command dword 11 may be provided at the command line. For convenience,
the current defined attributes (discard, integral read/write) for a
data-set management have flags. If cdw11 is specified, this will override
any settings from the flags may have provided.</p></div>
</div>
</div>
<div class="sect1">
<h2 id="_options">OPTIONS</h2>
<div class="sectionbody">
<div class="dlist"><dl>
<dt class="hdlist1">
-n &lt;nsid&gt;
</dt>
<dt class="hdlist1">
--namespace-id=&lt;nsid&gt;
</dt>
<dd>
<p>
        Sends the command with the requested nsid. This is required for the
        character devices, or overrides the block nsid if given.
</p>
</dd>
<dt class="hdlist1">
-a &lt;attribute-list,&gt;
</dt>
<dt class="hdlist1">
--ctx-attrs=&lt;attribute-list&gt;
</dt>
<dd>
<p>
        Comma separated list of the context attributes in each range
</p>
</dd>
<dt class="hdlist1">
-b &lt;nlb-list,&gt;
</dt>
<dt class="hdlist1">
--blocks=&lt;nlb-list,&gt;
</dt>
<dd>
<p>
        Comma separated list of the number of blocks in each range
</p>
</dd>
<dt class="hdlist1">
-s &lt;slba-list,&gt;
</dt>
<dt class="hdlist1">
--slbs=&lt;slba-list,&gt;
</dt>
<dd>
<p>
        Comma separated list of the starting block in each range
</p>
</dd>
<dt class="hdlist1">
-d &lt;deallocate&gt;
</dt>
<dt class="hdlist1">
--ad=&lt;deallocate&gt;
</dt>
<dd>
<p>
        Attribute Deallocate.
</p>
</dd>
<dt class="hdlist1">
-w &lt;write&gt;
</dt>
<dt class="hdlist1">
--idw=&lt;write&gt;
</dt>
<dd>
<p>
        Attribute Integral Dataset for Write.
</p>
</dd>
<dt class="hdlist1">
-r &lt;read&gt;
</dt>
<dt class="hdlist1">
--idr=&lt;read&gt;
</dt>
<dd>
<p>
        Attribute Integral Dataset for Read.
</p>
</dd>
<dt class="hdlist1">
-c &lt;cdw11&gt;
</dt>
<dt class="hdlist1">
--cdw11=&lt;cdw11&gt;
</dt>
<dd>
<p>
        All the command command dword 11 attributes. Use exclusive from
        specifying individual attributes
</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
 2025-11-21 00:00:00 UTC
</div>
</div>
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