Lustre 1.6 Operations Manual

5.3 Starting and Stopping LNET
Lustre automatically starts and stops LNET, but it can also be manually started in a
standalone manner. This is particularly useful to verify that your networking setup
is working correctly before you attempt to start Lustre.
5.3.1 Starting LNET
To start LNET, run:
$ modprobe lnet
$ lctl network up
To see the list of local NIDs, run:
$ lctl list_nids
This command tells you if the local node's networks are set up correctly.
If the networks are not correctly setup, see the modules.conf "networks=" line and
make sure the network layer modules are correctly installed and configured.
To get the best remote NID, run:
$ lctl which_nid
where is the list of available NIDs.
This command takes the "best" NID from a list of the NIDs of a remote host. The
"best" NID is the one that the local node uses when trying to communicate with the
remote node.
5.3.1.1 Starting Clients
To start a TCP client, run:
mount -t lustre mdsnode:/mdsA/client /mnt/lustre/
To start an Elan client, run:
mount -t lustre 2@elan0:/mdsA/client /mnt/lustre
5-10 Lustre 1.7 Operations Manual • September 2008