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<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">Here is a basic tutorial for people looking to test the upstream Lustre<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">client.<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">For the latest Lustre client code you needs to checkout the staging-next<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">branch of the staging tree. The below commands will download the kernel<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">tree containing the lustre source code of interest. This branch of the<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">staging tree is what should be used to create Lustre patches for<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">submission.
<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">git clone git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">git checkout origin/staging-next -b staging-next<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">Once the tree is checked out you need to configure the Lustre client using<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">the standard make config or menuconfig depending on your preference. You<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">will find the Lustre client option in the Staging drivers section since it<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">is still a work in progress.<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">make config<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">Device Drivers -> Staging drivers<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">Enable the option "Lustre file system support"<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">Once you enable the Lustre client new options will appear.<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black"><M> Lustre file system client support<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">(8192) Lustre obd max ioctl buffer bytes (default 8KB) (NEW)<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">[ ] Enable Lustre DEBUG checks (NEW)<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black"><M> Lustre virtual block device (NEW)<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">-M- Lustre networking subsystem<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">(1048576) Lustre lnet max transfer payload (default 2MB) (NEW)<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">< > Lustre networking self testing (NEW)<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black"><M> LNET infiniband support (NEW)<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">The Lustre networking subsystem or LNet is the lowest layer of the Lustre<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">filesystem. It was designed with the idea to allow network traffic to flow<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">without concern for the under lying hardware. In a typical Lustre file<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">system setup you have clients, routers, and a server backend.<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black"> ------------ ---------- ----------<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black"> | client | --> | router | --> | server |<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black"> ------------ ---------- ----------<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">For routers all that is needed is just the LNet layer. Currently the upstream<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">client in not able to build stand alone LNet but that will change in the near<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">future. One of the options you can change is the LNet transfer payload size.
<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">This allows you control the size of the largest packet that can be transmitted.<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">Normally 1 MB is the default size. By default LNet will build with support for<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">TCP/IP sockets. Additionally you can enable support for infiniband hardware usage<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">with LNet if you have the hardware. The other option if interest to the user<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">is Lustre networking self testing. When starting LNet default options will be<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">used to tune your setup. Those options often are not best a specific setup. This<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">is were the LNet self testing comes in. Using a special userland utility that<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">communicates with LNet selftest you can analysis the performance you are getting<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">out the LNet layer and adjust the tunables to meet your needs. Please be aware<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">routers are not a requirement. The most simple setup you can have is a straight<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">client to server connection.<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">The rest of the options deal with Lustre itself. You can control the size of the<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">data that is allowed over an ioctl. Just leave it at 8K. If you run into problems<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">testing the client you can enable the DEBUG checks. Lastly is the virtual block<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">device that allows lustre to mount as a loop back device.<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">Once you have built your Lustre client now you will need tools to actually use it.<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">You will need to checkout the Intel lustre repository to obtain the source for<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">these tools. The following command will obtain the needed source code.<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">git clone git://git.hpdd.intel.com/fs/lustre-release<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">After you download the code you will need to apply the following patch so the<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">tools can use sysfs as well as procfs. Currently the tools only support procfs<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">by default. Grab the patch from http://review.whamcloud.com/#/c/14675 and<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">just do a git apply of the patch from the top of the source tree. Once you have<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">patched your tree run the following commands.<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">cd lustre-release<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">sh ./autogen.sh<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">./configure --disable-server<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">For RHEL based systems run<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">make rpms<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">The completed rpms will be in the top directory of the source tree. Of the rpms<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">only lustre-client-2.X.Y-***.rpm and lustre-client-tests-2.X.Y-***.rpm are of<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">interest. The lustre-client-2.X.Y-***.rpm contains all the userland tools and<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">libraries needed to manage a lustre file system. The lustre-client-tests-***.rpm<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">contains a test suite that can be used to validate the file system on many levels.<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">To use this you need to setup a complete file system and configure the test suite<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">for your particular setup. If you are interested in creating a setup please contact<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">the lustre-devel@lustre.org mailing list and some one will gladly help you out.<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">For Debian/Ubuntu systems run<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">make debs
<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">The finished debian will be in the lustre-release/debs directory. The packages of<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">interest are:<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">lustre-dev_2.X.Y-1_**.deb<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">lustre-utils_2.X.Y-1_***.deb<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">lustre-tests_2.X.Y-1_***.deb<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">Just like in the case of rpms the lustre-tests-*.deb is for indepth lustre file system<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">testing which requires a complex setup. Please contact lustre-devel@lustre.org if<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">you are interested in such testing.<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">For both cases for debs and rpms you will need to install them with no dependencies<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">since the lustre utility tree is undergoing a transition to be used with the upstream<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">client which means the packages have dependencies not needed.<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">Once very thing is installed in your nodes and rebooted how you bring things up depends<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">if it is a router or client. If you bring up a client and have a backend server setup<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">you can easily mount your lustre filesystem with a command similar to:<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">mount -t lustre -o "msg_server_address"@tcp:/myfilesystem /filesystem/path<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">This will automatically setup everything for you.<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">For the case of routers you just need to bring up the LNet layer. Also if you are only<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">interested in LNet level testing this also applies for any nodes. For the routers the
<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">commands to bring up LNet are as follows:<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">modprobe lnet<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">lctl net up<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">You should see "LNET configured". At this point LNet is up and running. You can<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">further validate that LNet is up by issuing the command 'lctl list_nids'. This<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">will list your local LNet setup. Normally something like the following appears:<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">10.0.0.20@tcp. To test if you can reach a remote node just run for example:<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">lctl ping 10.0.0.3@tcp
<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">With a LNet set up you can either try out LNet selftest to simulate traffic between<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">any nodes, not just routers. Documentation for this utility can be read at:<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">http://wiki.old.lustre.org/manual/LustreManual20_HTML/LNETSelfTest.html<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:Menlo-Regular;color:black">This should get you started.</span><span style="font-size:10.0pt"><o:p></o:p></span></p>
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