Hello, I have Lustre 2.2 running and looking for a way to add another service node based on tcp(ethernet). My MDS,OSS are formatted with IB based NIDs(o2ib) like this; (1) MDS mkfs.lustre --reformat --fsname=lust01 --mgs --mdt --servicenode=10.10.6.203@o2ib --servicenode=10.10.6.204@o2ib /dev/sdb (2) OSS mkfs.lustre --reformat --fsname=lust01 --servicenode=10.10.6.205@o2ib --servicenode=10.10.6.206@o2ib --mgsnode=10.10.6.203@o2ib --mgsnode=10.10.6.204@o2ib --ost --index=0 /dev/sdb This lustre filesystem ('lust01') has been up & running for a while. And I'd like to add tcp0 interfaces to the MDS/OSS as service nodes. The purpose is to add non-IB based lustre clients to this LNET. (e.g.) --servicenode=10.10.1.1@tcp0 --servicenode=10.10.1.2@tcp0 Questions are; - Is this valid lustre configuration? - Is it possible to add tcp0 service nodes to an existing (operating) lustre filesystem? - If yes, would someone teach me how to add tcp0 NIDs to the MDS/OSS? - Any pointer to the manual/URL are welcome. Thanks, in advance. Sudo = 2xMDS = = = = = 2xOSS = = 203@o2ib - - - - - - 205@o2ib 204@o2ib - - - - - - 206@o2ib - - - - - - - - - - - - - - - - - - 1@tcp0 2@tcp0