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Load Balancing with Infiniband

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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. ■ Dual HCA OSS server 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 Chapter 7 More Complicated Configurations 7-7 7.3.3 Start clients For the IB client, run: mount -t lustre 192.168.10.101@o2ib0,192.168.10.102@o2ib1:/mds/client /mnt/lustre