Lustre 1.6 Operations Manual

7.3 Load Balancing with Infiniband
There is one OSS with two infiniband HCAs. Lustre clients have only one Infiniband
HCA using native Lustre drivers of o2ibind. Load balancing is done on both HCAs
on the OSS with the help of LNET.
7.3.1 Modprobe.conf
Lustre users have options available on following networks.
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Dual HCA OSS server
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■
options lnet ip2nets= "o2ib0(ib0),o2ib1(ib1) 192.168.10.1.[101-102]
Client with the odd IP address
options lnet ip2nets=o2ib0(ib0) 192.168.10.[103-253/2]
Client with the even IP address
options lnet ip2nets=o2ib1(ib0) 192.168.10.[102-254/2]
7.3.2 Start servers
To start the MGS and MDT server, run:
modprobe lnet
To start MGS and MDT, run:
$ mkfs.lustre --fsname lustre --mdt --mgs /dev/sda
$ mkdir -p /mnt/test/mdt
$ mount -t lustre /dev/sda /mnt/test/mdt
$ mount -t lustre mgs@o2ib0:/lustre /mnt/mdt
To start the OSS, run:
$ mkfs.lustre --fsname lustre --ost --mgsnode=mds@o2ib0 /dev/sda
$ mkdir -p /mnt/test/mdt
$ mount -t lustre /dev/sda /mnt/test/ost
$ mount -t lustre mgs@o2ib0:/lustre /mnt/ost
7-6 Lustre 1.6 Operations Manual • September 2008