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Lustre 1.6 Operations Manual

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1. Shut down all clients and servers<br />

2. Install new packages everywhere<br />

3. Edit the <strong>Lustre</strong> configuration<br />

4. Update the configuration on the MDS with 'lconf --write_conf'<br />

5. Restart<br />

New Network Addressing<br />

A NID is a <strong>Lustre</strong> network address. Every node has one NID for each network to<br />

which it is attached.<br />

The NID has the form [@], where the is the network<br />

address and is an identifier for the network. (network type + instance)<br />

Examples:<br />

First TCP network: 192.73.220.107@tcp0<br />

Second TCP network: 10.10.1.50@tcp1<br />

Elan: 2@elan<br />

The "--nid '*' " syntax for the generic client is still valid.<br />

Modules/modprobe.conf<br />

Network hardware and routing are now configured via module parameters,<br />

specified in the usual locations. Depending on your kernel version and Linux<br />

distribution, this may be /etc/modules.conf,<br />

/etc/modprobe.conf, or /etc/modprobe.conf.local.<br />

All old <strong>Lustre</strong> configuration lines should be removed from the module configuration<br />

file. The RPM install should do this, but check to be certain.<br />

The base module configuration requires two lines:<br />

alias lustre llite<br />

options lnet networks=tcp0<br />

A full list of options can be found at Module Parameters on page 37. Detailed<br />

examples can be found in the section, 'Configuring the <strong>Lustre</strong> Network'. Some brief<br />

examples:<br />

Example 1: Use eth1 instead of eth0:<br />

options lnet networks="tcp0(eth1)"<br />

Appendix D <strong>Lustre</strong> Knowledge Base D-23

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