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View File Name : nvme-connect-all.html

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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>]
                        [--nqn=<subnqn> | -n <subnqn>]
                        [--traddr=<traddr> | -a <traddr>]
                        [--trsvcid=<trsvcid> | -s <trsvcid>]
                        [--host-traddr=<traddr> | -w <traddr>]
                        [--host-iface=<iface> | -f <iface>]
                        [--hostnqn=<hostnqn> | -q <hostnqn>]
                        [--hostid=<hostid> | -I <hostid>]
                        [--raw=<filename> | -r <filename>]
                        [--device=<device> | -d <device>]
                        [--config=<filename> | -J <cfg>]
                        [--keep-alive-tmo=<sec> | -k <sec>]
                        [--reconnect-delay=<#> | -c <#>]
                        [--ctrl-loss-tmo=<#>     | -l <#>]
                        [--nr-io-queues=<#> | -i <#>]
                        [--nr-write-queues=<#> | -W <#>]
                        [--nr-poll-queues=<#> | -P <#>]
                        [--queue-size=<#> | -Q <#>] [--keyring=<#>]
                        [--tls_key=<#>] [--hdr-digest | -g] [--data-digest | -G]
                        [--persistent | -p] [--tls] [--concat] [--quiet]
                        [--dump-config | -O] [--nbft] [--no-nbft]
                        [--nbft-path=<STR>] [--context=<STR>]
                        [--output-format=<fmt> | -o <fmt>] [--verbose | -v]</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 Discovery
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">tcp</p></td>
<td align="left" valign="top"><p class="table">The network fabric is a TCP/IP 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">
-n <subnqn>
</dt>
<dt class="hdlist1">
--nqn <subnqn>
</dt>
<dd>
<p>
        This field specifies the name for the NVMe subsystem to connect to.
</p>
</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 Controller. For TCP, this sets the source address on the socket.
</p>
</dd>
<dt class="hdlist1">
-f <iface>
</dt>
<dt class="hdlist1">
--host-iface=<iface>
</dt>
<dd>
<p>
        This field specifies the network interface used on the host to connect
        to the Controller (e.g. IP eth1, enp2s0, enx78e7d1ea46da). This forces
        the connection to be made on a specific interface instead of letting
        the system decide.
</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">
-d <device>
</dt>
<dt class="hdlist1">
--device=<device>
</dt>
<dd>
<p>
        This field takes a device as input. It must be a persistent device
        associated with a Discovery Controller previously created by the
        command "connect-all" or "discover". <device> follows the format
        nvme*, eg. nvme0, nvme1.
</p>
</dd>
<dt class="hdlist1">
-J <filename>
</dt>
<dt class="hdlist1">
--config=<filename>
</dt>
<dd>
<p>
        Use the specified JSON configuration file instead of the
        default /etc/nvme/config.json file or <em>none</em> to not read in
        an existing configuration file. The JSON configuration file
        format is documented in
        <a href="https://github.com/linux-nvme/libnvme/blob/master/doc/config-schema.json">https://github.com/linux-nvme/libnvme/blob/master/doc/config-schema.json</a>
</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">
-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">
--keyring=<#>
</dt>
<dd>
<p>
        Keyring for TLS key lookup.
</p>
</dd>
<dt class="hdlist1">
--tls_key=<#>
</dt>
<dd>
<p>
        TLS key for the connection (TCP).
</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">
-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">
--tls
</dt>
<dd>
<p>
        Enable TLS encryption (TCP).
</p>
</dd>
<dt class="hdlist1">
--concat
</dt>
<dd>
<p>
        Enable secure concatenation (TCP).
</p>
</dd>
<dt class="hdlist1">
--quiet
</dt>
<dd>
<p>
        Suppress error messages.
</p>
</dd>
<dt class="hdlist1">
-O
</dt>
<dt class="hdlist1">
--dump-config
</dt>
<dd>
<p>
        Print out resulting JSON configuration file to stdout.
</p>
</dd>
<dt class="hdlist1">
--nbft
</dt>
<dd>
<p>
        Only look at NBFT tables
</p>
</dd>
<dt class="hdlist1">
--no-nbft
</dt>
<dd>
<p>
        Do not look at NBFT tables
</p>
</dd>
<dt class="hdlist1">
--nbft-path=<STR>
</dt>
<dd>
<p>
        Use a user-defined path to the NBFT tables
</p>
</dd>
<dt class="hdlist1">
--context <STR>
</dt>
<dd>
<p>
        Set the execution context to <STR>. This allows to coordinate
        the management of the global resources.
</p>
</dd>
<dt class="hdlist1">
-o <fmt>
</dt>
<dt class="hdlist1">
--output-format=<fmt>
</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>
</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 the default system defined NBFT tables:
</p>
<div class="listingblock">
<div class="content">
<pre><code># nvme connect-all --nbft</code></pre>
</div></div>
</li>
<li>
<p>
Issue a <em>nvme connect-all</em> command with a user-defined path for the NBFT table:
</p>
<div class="listingblock">
<div class="content">
<pre><code># nvme connet-all --nbft-path=/sys/firmware/acpi/tables/NBFT1</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
 2025-02-13 00:00:00 UTC
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