Hi, Iam trying Lustre 1.4.3 + OpenIB 1.8.0. I could get the Lustre to use openib nal and get the clients mounted (1 MDS and 1 OSS). # MDS $LMC --add net --node lnxi-mds --nid 192.168.0.250 --nettype openib # OSD $LMC --add net --node lnxi-oss --nid 192.168.0.1 --nettype openib --mountfsoptions extents,mballoc In the above, we had to bind an unique IP address to the IB interface. Now the nodes have dual-port IB HCAs and I would like to utilize both the IB interfaces. If so, what IP address do I use or is there other way to tackle this ? Using IP over IB, we can utilize the dual IB interfaces (assigning different IP addresses to each IPoIB interface), however this might impact the performance. Thanks in advance, -Kums