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Configuring InfiniBand Connectivity: Difference between revisions

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This section describes how to configure LNET.
<small>''(Updated: Dec 2009)''</small>
OFED InfiniBand Options
__TOC__
For the SilverStorm/Infinicon InfiniBand LND (iiblnd), the network and HCA may
To configure Infiniband connectivity, follow the procedures appropriate for your system below.
be specified, as in this example:
 
== Configuring LNET as an OFED Infiniband Network ==
 
To configure LNET as an OFED InfiniBand network, enter:
 
<pre>
options lnet networks="o2ib3(ib3)"
options lnet networks="o2ib3(ib3)"
This specifies that the node is on o2ib network number 3, using HCA ib3.
</pre>
The node specified is on ''o2ib'' network ''3'' using HCA ''ib3''.
 
For information about other LNET options, see [http://wiki.lustre.org/manual/LustreManual20_HTML/ConfigurationFilesModuleParameters.html#50438293_pgfId-1293321 35.2.1: ''LNET Options''] in the [http://wiki.lustre.org/manual/LustreManual20_HTML/index.html ''Lustre Operations Manual''].


== Building and Configuring Infiniband Support for Lustre™ ==


InfiniBand connectivity can be achieved using commands and options provided in
The distributed kernels do not yet include 3rd-party Infiniband modules. As a result,
our Lustre™ packages can not include IB network drivers for Lustre. However,
we do distribute the source code. You will need to build your Infiniband software
stack against the supplied kernel and then build new Lustre packages.


The OFED InfiniBand software suite <link to where it can be downloaded> provides commands and options to  monitor and control aspects of the InfiniBand fabric. These commands are installed on and run from the Linux InfiniBand host.
====Voltaire====


To configure LNET as an InfiniBand network, see the example below.
To build Lustre with Voltaire Infiniband sources, add the following as an argument to the configure script:
--with-vib=<path-tovoltaire-sources>


For the SilverStorm/Infinicon InfiniBand Lustre Network Driver (iiblnd), the network and HCA can be specified by entering:
To configure Lustre, use:  
--nettype vib --nid <IPoIB address>


options lnet networks="o2ib3(ib3)"
'''''Note:''''' In Lustre v1.4.5, the Voltaire IB module (''kvibnal'') will not work on the Altix system. This is due to hardware differences in the Altix system.
 
====OpenIB generation 1 / Mellanox Gold====
 
To build Lustre with OpenIB Infiniband sources, add the following as an argument to the configure script:
--with-openib=<path_to_openib sources>
 
To configure Lustre, use:
--nettype openib --nid <IPoIB address>
 
====Silverstorm====
 
A Silverstorm driver for Lustre is available.
 
To build Silverstorm with Lustre, configure Lustre with:
--with-iib=<path to silverstorm sources>


In this example, the node is on o2ib network number 3 and uses HCA ib3.
====OpenIB 1.0====
An OpenIB 1.0 driver for Lustre is available.

Latest revision as of 11:57, 20 January 2011

(Updated: Dec 2009)

To configure Infiniband connectivity, follow the procedures appropriate for your system below.

Configuring LNET as an OFED Infiniband Network

To configure LNET as an OFED InfiniBand network, enter:

options lnet networks="o2ib3(ib3)"

The node specified is on o2ib network 3 using HCA ib3.

For information about other LNET options, see 35.2.1: LNET Options in the Lustre Operations Manual.

Building and Configuring Infiniband Support for Lustre™

The distributed kernels do not yet include 3rd-party Infiniband modules. As a result, our Lustre™ packages can not include IB network drivers for Lustre. However, we do distribute the source code. You will need to build your Infiniband software stack against the supplied kernel and then build new Lustre packages.

Voltaire

To build Lustre with Voltaire Infiniband sources, add the following as an argument to the configure script:

--with-vib=<path-tovoltaire-sources> 

To configure Lustre, use:

--nettype vib --nid <IPoIB address>

Note: In Lustre v1.4.5, the Voltaire IB module (kvibnal) will not work on the Altix system. This is due to hardware differences in the Altix system.

OpenIB generation 1 / Mellanox Gold

To build Lustre with OpenIB Infiniband sources, add the following as an argument to the configure script:

--with-openib=<path_to_openib sources> 

To configure Lustre, use:

--nettype openib --nid <IPoIB address>

Silverstorm

A Silverstorm driver for Lustre is available.

To build Silverstorm with Lustre, configure Lustre with:

--with-iib=<path to silverstorm sources>

OpenIB 1.0

An OpenIB 1.0 driver for Lustre is available.