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<body class="manpage">
<div id="header">
<h1>
nvme-connect-all(1) Manual Page
</h1>
<h2>NAME</h2>
<div class="sectionbody">
<p>nvme-connect-all -
Discover and Connect to Fabrics controllers.
</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 connect-all</em>
[--transport=<trtype> | -t <trtype>]
[--traddr=<traddr> | -a <traddr>]
[--trsvcid=<trsvcid> | -s <trsvcid>]
[--host-traddr=<traddr> | -w <traddr>]
[--hostnqn=<hostnqn> | -q <hostnqn>]
[--hostid=<hostid> | -I <hostid>]
[--raw=<filename> | -r <filename>]
[--keep-alive-tmo=<#> | -k <#>]
[--reconnect-delay=<#> | -c <#>]
[--ctrl-loss-tmo=<#> | -l <#>]
[--hdr-digest | -g]
[--data-digest | -G]
[--nr-io-queues=<#> | -i <#>]
[--nr-write-queues=<#> | -W <#>]
[--nr-poll-queues=<#> | -P <#>]
[--queue-size=<#> | -Q <#>]
[--matching | -m]
[--persistent | -p]
[--quiet | -q]</pre>
<div class="attribution">
</div></div>
</div>
</div>
<div class="sect1">
<h2 id="_description">DESCRIPTION</h2>
<div class="sectionbody">
<div class="paragraph"><p>Send one or more Discovery requests to a NVMe over Fabrics Discovery
Controller, and create controllers for the returned discovery records.</p></div>
<div class="paragraph"><p>If no parameters are given, then <em>nvme connect-all</em> will attempt to
find a /etc/nvme/discovery.conf file to use to supply a list of
connect-all commands to run. If no /etc/nvme/discovery.conf file exists,
the command will quit with an error.</p></div>
<div class="paragraph"><p>Otherwise a specific Discovery Controller should be specified using the
--transport, --traddr and if necessary the --trsvcid and a Diѕcovery
request will be sent to the specified Discovery Controller.</p></div>
<div class="paragraph"><p>See the documentation for the nvme-discover(1) command for further
background.</p></div>
</div>
</div>
<div class="sect1">
<h2 id="_options">OPTIONS</h2>
<div class="sectionbody">
<div class="dlist"><dl>
<dt class="hdlist1">
-t <trtype>
</dt>
<dt class="hdlist1">
--transport=<trtype>
</dt>
<dd>
<p>
This field specifies the network fabric being used for
a NVMe-over-Fabrics network. Current string values include:
</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">rdma</p></td>
<td align="left" valign="top"><p class="table">The network fabric is an rdma network (RoCE, iWARP, Infiniband, basic rdma, etc)</p></td>
</tr>
<tr>
<td align="left" valign="top"><p class="table">fc</p></td>
<td align="left" valign="top"><p class="table"><strong>WIP</strong> The network fabric is a Fibre Channel network.</p></td>
</tr>
<tr>
<td align="left" valign="top"><p class="table">loop</p></td>
<td align="left" valign="top"><p class="table">Connect to a NVMe over Fabrics target on the local host</p></td>
</tr>
</tbody>
</table>
</div>
</dd>
<dt class="hdlist1">
-a <traddr>
</dt>
<dt class="hdlist1">
--traddr=<traddr>
</dt>
<dd>
<p>
This field specifies the network address of the Discovery Controller.
For transports using IP addressing (e.g. rdma) this should be an
IP-based address (ex. IPv4).
</p>
</dd>
<dt class="hdlist1">
-s <trsvcid>
</dt>
<dt class="hdlist1">
--trsvcid=<trsvcid>
</dt>
<dd>
<p>
This field specifies the transport service id. For transports using IP
addressing (e.g. rdma) this field is the port number. By default, the IP
port number for the RDMA transport is 4420.
</p>
</dd>
<dt class="hdlist1">
-w <traddr>
</dt>
<dt class="hdlist1">
--host-traddr=<traddr>
</dt>
<dd>
<p>
This field specifies the network address used on the host to connect
to the Discovery Controller.
</p>
</dd>
<dt class="hdlist1">
-q <hostnqn>
</dt>
<dt class="hdlist1">
--hostnqn=<hostnqn>
</dt>
<dd>
<p>
Overrides the default Host NQN that identifies the NVMe Host.
If this option is not specified, the default is read from
/etc/nvme/hostnqn first. If that does not exist, the autogenerated
NQN value from the NVMe Host kernel module is used next.
The Host NQN uniquely identifies the NVMe Host, and may be used by the
the Discovery Controller to control what NVMe Target resources are
allocated to the NVMe Host for a connection.
</p>
</dd>
<dt class="hdlist1">
-I <hostid>
</dt>
<dt class="hdlist1">
--hostid=<hostid>
</dt>
<dd>
<p>
UUID(Universally Unique Identifier) to be discovered which should be
formatted.
</p>
</dd>
<dt class="hdlist1">
-r <filename>
</dt>
<dt class="hdlist1">
--raw=<filename>
</dt>
<dd>
<p>
This field will take the output of the <em>nvme connect-all</em> command
and dump it to a raw binary file. By default <em>nvme connect-all</em> will
dump the output to stdout.
</p>
</dd>
<dt class="hdlist1">
-k <#>
</dt>
<dt class="hdlist1">
--keep-alive-tmo=<#>
</dt>
<dd>
<p>
Overrides the default keep alive timeout (in seconds). This
option will be ignored for discovery, but will be passed on to
the subsequent connect call.
</p>
</dd>
<dt class="hdlist1">
-c <#>
</dt>
<dt class="hdlist1">
--reconnect-delay=<#>
</dt>
<dd>
<p>
Overrides the default delay (in seconds) before reconnect is attempted
after a connect loss.
</p>
</dd>
<dt class="hdlist1">
-l <#>
</dt>
<dt class="hdlist1">
--ctrl-loss-tmo=<#>
</dt>
<dd>
<p>
Overrides the default controller loss timeout period (in seconds).
</p>
</dd>
<dt class="hdlist1">
-g
</dt>
<dt class="hdlist1">
--hdr-digest
</dt>
<dd>
<p>
Generates/verifies header digest (TCP).
</p>
</dd>
<dt class="hdlist1">
-G
</dt>
<dt class="hdlist1">
--data-digest
</dt>
<dd>
<p>
Generates/verifies data digest (TCP).
</p>
</dd>
<dt class="hdlist1">
-i <#>
</dt>
<dt class="hdlist1">
--nr-io-queues=<#>
</dt>
<dd>
<p>
Overrides the default number of I/O queues create by the driver.
This option will be ignored for discovery, but will be passed on
to the subsequent connect call.
</p>
</dd>
<dt class="hdlist1">
-W <#>
</dt>
<dt class="hdlist1">
--nr-write-queues=<#>
</dt>
<dd>
<p>
Adds additional queues that will be used for write I/O.
</p>
</dd>
<dt class="hdlist1">
-P <#>
</dt>
<dt class="hdlist1">
--nr-poll-queues=<#>
</dt>
<dd>
<p>
Adds additional queues that will be used for polling latency sensitive I/O.
</p>
</dd>
<dt class="hdlist1">
-Q <#>
</dt>
<dt class="hdlist1">
--queue-size=<#>
</dt>
<dd>
<p>
Overrides the default number of elements in the I/O queues created
by the driver. This option will be ignored for discovery, but will be
passed on to the subsequent connect call.
</p>
</dd>
<dt class="hdlist1">
-m
</dt>
<dt class="hdlist1">
--matching
</dt>
<dd>
<p>
If a traddr was specified on the command line or in the configuration
file, only create controllers for discovery records that match the
given traddr, rather than for all entries in the discovery log page.
</p>
</dd>
<dt class="hdlist1">
-p
</dt>
<dt class="hdlist1">
--persistent
</dt>
<dd>
<p>
Don’t remove the discovery controller after retrieving the discovery
log page.
</p>
</dd>
<dt class="hdlist1">
-q
</dt>
<dt class="hdlist1">
--quiet
</dt>
<dd>
<p>
Suppress error messages.
</p>
</dd>
</dl></div>
</div>
</div>
<div class="sect1">
<h2 id="_examples">EXAMPLES</h2>
<div class="sectionbody">
<div class="ulist"><ul>
<li>
<p>
Connect to all records returned by the Discover Controller with IP4 address
192.168.1.3 for all resources allocated for NVMe Host name host1-rogue-nqn on
the RDMA network. Port 4420 is used by default:
</p>
<div class="listingblock">
<div class="content">
<pre><code># nvme connect-all --transport=rdma --traddr=192.168.1.3 \
--hostnqn=host1-rogue-nqn</code></pre>
</div></div>
</li>
<li>
<p>
Issue a <em>nvme connect-all</em> command using a /etc/nvme/discovery.conf file:
</p>
<div class="listingblock">
<div class="content">
<pre><code># Machine default 'nvme discover' commands. Query the
# Discovery Controller's two ports (some resources may only
# be accessible on a single port). Note an official
# nqn (Host) name defined in the NVMe specification is being used
# in this example.
-t rdma -a 192.168.69.33 -s 4420 -q nqn.2014-08.com.example:nvme:nvm-subsystem-sn-d78432
-t rdma -a 192.168.1.4 -s 4420 -q nqn.2014-08.com.example:nvme:nvm-subsystem-sn-d78432
At the prompt type "nvme connect-all".</code></pre>
</div></div>
</li>
</ul></div>
</div>
</div>
<div class="sect1">
<h2 id="_see_also">SEE ALSO</h2>
<div class="sectionbody">
<div class="paragraph"><p>nvme-discover(1)
nvme-connect(1)</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
2020-04-29 22:28:00 CEST
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