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<body class="manpage">
<div id="header">
<h1>
nvme-resv-acquire(1) Manual Page
</h1>
<h2>NAME</h2>
<div class="sectionbody">
<p>nvme-resv-acquire -
   Acquire an nvme reservation
</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 resv-acquire</em> &lt;device&gt; [--namespace-id=&lt;nsid&gt; | -n &lt;nsid&gt;]
                        [--crkey=&lt;crkey&gt; | -c &lt;crkey&gt;]
                        [--prkey=&lt;prkey&gt; | -p &lt;prkey&gt;]
                        [--rtype=&lt;rtype&gt; | -t &lt;rtype&gt;]
                        [--racqa=&lt;racqa&gt; | -a &lt;racqa&gt;] [--iekey | -i]
                        [--output-format=&lt;fmt&gt; | -o &lt;fmt&gt;] [--verbose | -v]
                        [--timeout=&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 Reservation Acquire command is used to acquire a reservation on
a namespace, preempt a reservation held on a namespace, and abort a
reservation held on a namespace.</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>
        Override the nsid field. If using the admin character device,
        this parameter is required.
</p>
</dd>
<dt class="hdlist1">
-c &lt;crkey&gt;
</dt>
<dt class="hdlist1">
--crkey=&lt;crkey&gt;
</dt>
<dd>
<p>
        Current Reservation Key: The field specifies the current
        reservation key associated with the host. If the IEKEY bit is
        set to ‘1’ in the command, then the CRKEY check succeeds
        regardless of the value in this field.
</p>
</dd>
<dt class="hdlist1">
-p &lt;prkey&gt;
</dt>
<dt class="hdlist1">
--prkey=&lt;prkey&gt;
</dt>
<dd>
<p>
        Preempt Reservation Key: If the Reservation Acquire Action is set
        to 001b (i.e., Preempt) or 010b (i.e., Preempt and Abort), then
        this field specifies the reservation key to be unregistered from
        the namespace. For all other Reservation Acquire Action values,
        this field is reserved.
</p>
</dd>
<dt class="hdlist1">
-t &lt;rtype&gt;
</dt>
<dt class="hdlist1">
--rtype=&lt;rtype&gt;
</dt>
<dd>
<p>
        Reservation Type: This field specifies the type of reservation
        to be created.
</p>
<div class="tableblock">
<table rules="all"
width="100%"
frame="border"
cellspacing="0" cellpadding="4">
<col width="50%" />
<col width="50%" />
<tbody>
<tr>
<td align="left" valign="top"><p class="table">Value</p></td>
<td align="left" valign="top"><p class="table">Definition</p></td>
</tr>
<tr>
<td align="left" valign="top"><p class="table">0h</p></td>
<td align="left" valign="top"><p class="table">Reserved</p></td>
</tr>
<tr>
<td align="left" valign="top"><p class="table">1h</p></td>
<td align="left" valign="top"><p class="table">Write Exclusive Reservation</p></td>
</tr>
<tr>
<td align="left" valign="top"><p class="table">2h</p></td>
<td align="left" valign="top"><p class="table">Exclusive Access Reservation</p></td>
</tr>
<tr>
<td align="left" valign="top"><p class="table">3h</p></td>
<td align="left" valign="top"><p class="table">Write Exclusive - Registrants Only Reservation</p></td>
</tr>
<tr>
<td align="left" valign="top"><p class="table">4h</p></td>
<td align="left" valign="top"><p class="table">Exclusive Access - Registrants Only Reservation</p></td>
</tr>
<tr>
<td align="left" valign="top"><p class="table">5h</p></td>
<td align="left" valign="top"><p class="table">Write Exclusive - All Registrants Reservation</p></td>
</tr>
<tr>
<td align="left" valign="top"><p class="table">6h</p></td>
<td align="left" valign="top"><p class="table">Exclusive Access - All Registrants Reservation</p></td>
</tr>
<tr>
<td align="left" valign="top"><p class="table">07h-FFh</p></td>
<td align="left" valign="top"><p class="table">Reserved</p></td>
</tr>
</tbody>
</table>
</div>
</dd>
<dt class="hdlist1">
-a &lt;racqa&gt;
</dt>
<dt class="hdlist1">
--racqa=&lt;racqa&gt;
</dt>
<dd>
<p>
        Reservation Acquire Action: This field specifies the action that
        is performed by the command.
</p>
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frame="border"
cellspacing="0" cellpadding="4">
<col width="50%" />
<col width="50%" />
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<tr>
<td align="left" valign="top"><p class="table">Value</p></td>
<td align="left" valign="top"><p class="table">Definition</p></td>
</tr>
<tr>
<td align="left" valign="top"><p class="table">0</p></td>
<td align="left" valign="top"><p class="table">Acquire</p></td>
</tr>
<tr>
<td align="left" valign="top"><p class="table">1</p></td>
<td align="left" valign="top"><p class="table">Preempt</p></td>
</tr>
<tr>
<td align="left" valign="top"><p class="table">2</p></td>
<td align="left" valign="top"><p class="table">Preempt and Abort</p></td>
</tr>
<tr>
<td align="left" valign="top"><p class="table">3-7</p></td>
<td align="left" valign="top"><p class="table">Reserved</p></td>
</tr>
</tbody>
</table>
</div>
</dd>
<dt class="hdlist1">
-i
</dt>
<dt class="hdlist1">
--iekey
</dt>
<dd>
<p>
        Ignore Existing Key: If this bit is set to a <em>1</em>, then the
        Current Reservation Key (CRKEY) check is disabled and the command
        shall succeed regardless of the CRKEY field value.
</p>
<div class="paragraph"><p>Indicator option, defaults to <em>0</em>.</p></div>
</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">
--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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