[lustre-discuss] Lustre with 100 Gbps Mellanox CX5 card
Pinkesh Valdria
pinkesh.valdria at oracle.com
Wed Jan 22 01:06:12 PST 2020
Hello Lustre Community,
I am trying to configure lustre for 100 Gbps Mellanox CX5 card. I tried using 2.12.3 version first, but it failed when I tried to run lnetctl net add --net o2ib0 --if enp94s0f0, so I started looking at the lustre binaries and found the below repos for ib.
Is the below a special build for Mellanox cards? or should I still be using the common Lustre binaries which are also used for tcp/ksocklnd networks.
[hpddLustreserver]
name=CentOS- - Lustre
baseurl=https://downloads.whamcloud.com/public/lustre/lustre-2.13.0-ib/MOFED-4.7-1.0.0.1/el7/server/
gpgcheck=0
[e2fsprogs]
name=CentOS- - Ldiskfs
baseurl=https://downloads.whamcloud.com/public/e2fsprogs/latest/el7/
gpgcheck=0
[hpddLustreclient]
name=CentOS- - Lustre
baseurl=https://downloads.whamcloud.com/public/lustre/lustre-2.13.0-ib/MOFED-4.7-1.0.0.1/el7/client/
gpgcheck=0
When I use the above repos, the below command returns success, but the options I passed are not taking effect. NIC card: enp94s0f0 is my 100 Gbps card.
lnetctl net add --net o2ib0 --if enp94s0f0 –peer-timeout 100 –peer-credits 16 –credits 2560
Similarly, when I try to configure some options via this file: /etc/modprobe.d/ko2iblnd.conf, they are not taking effect and are not applied when I run the command:
cat /etc/modprobe.d/ko2iblnd.conf
alias ko2iblnd ko2iblnd
options ko2iblnd map_on_demand=256 concurrent_sends=63 peercredits_hiw=31 fmr_pool_size=1280 fmr_flush_trigger=1024 fmr_cache=1
lnetctl net show -v --net o2ib
net:
- net type: o2ib
local NI(s):
- nid: 192.168.1.2 at o2ib
status: up
interfaces:
0: enp94s0f0
statistics:
send_count: 0
recv_count: 0
drop_count: 0
tunables:
peer_timeout: 100
peer_credits: 16
peer_buffer_credits: 0
credits: 2560
peercredits_hiw: 8
map_on_demand: 0
concurrent_sends: 16
fmr_pool_size: 512
fmr_flush_trigger: 384
fmr_cache: 1
ntx: 512
conns_per_peer: 1
lnd tunables:
dev cpt: 0
tcp bonding: 0
CPT: "[0,1]"
[root at inst-ran1f-lustre ~]#
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