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Questions tagged [mellanox]

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Connecting Intel X722 SFP+ to Mellanox SX1012 QSFP via 4-split breakout cable using ubuntu

I have two servers running Ubuntu 18.04, each equipped with two SFP+ interfaces, each showing up in lshw like the following. *-network:1 description: Ethernet interface product: ...
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0answers
27 views

Mellanox SN2700 Switch fan speed control?

Is there a way to adjust the fan speeds of a Mellanox SN2700 Switch? I could not find any mention on the Web UI nor in the MLNX-OS manual.
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0answers
32 views

Problems to configure Mellanox SN2700 switch to hand out ip addresses to connected servers

I use the Mellanox SN2700 switch (with MLNX-OS) to connect 3 different servers. How can I configure the switch to hand out ip addresses to each server? Is that possible given that the switch possesses ...
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1answer
130 views

Can not setup Mellanox connectx-2 in 40g speed

I have Mellanox connectX-2 network card (MT26428) and I installed MLNX_OFED_LINUX-3.4-1.0.0.0-ubuntu16.04-x86_64 driver from Mellanox repository but I'm wondering this equipment setup 20G at maximum ...
7
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2answers
398 views

QSFP28 - is there something like a crossover cable?

Can not find anything to that ;) Building a Hyperconvergend Cluster as development system. This is for us state of the art. Got 2 machines for a start, with a switch ordered to come in about 4 weeks....
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1answer
39 views

Managed switch for Mellanox MCX354A-FCBT cards?

I've inherited two Mellanox Infiniband environments. One on a LAN, and the other in a DMZ. Both IB networks have their own SX6005 unmanaged switches and a couple small desktop computers running the ...
1
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1answer
153 views

Infiniband configured and connected but indicator lights unlit on HBAs and no functionality in OS

I have installed two dual-port FDR Infiniband VPI HBAs, one in each of two servers running CentOS 6.9, server1>lspci 03:00.0 Network controller: Mellanox Technologies MT27500 Family [ConnectX-3] ...
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2answers
192 views

Dual-port RDMA Throughput Issue

I have two nodes connected with dual-port Mellanox Connext-X3 VPI HCAs via an IB switch. The nodes are two socket machines with Hasswell CPUs and 2 16GB DIMMs per each socket (totaling 64GB). ...
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2answers
316 views

In Infiniband can I use the same port for IPoIB traffic as well as RDMA traffic?

Good day, and my disclaimer that I am no IB expert and have not worked on IB directly yet. My question seems a trivial one, yet I could not find anything in google that answers it. Question: In ...
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1answer
105 views

SFP+ Connector Won't Latch

We're trying to connect a Cisco Meraki MS225-48 switch to a Mellanox SN2100 switch using this breakout cable. However, the SFP+ end of the cable does not physically latch into the Meraki SFP+ ports (i....
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1answer
611 views

Troubles with ibverbs in OpenSUSE Leap 42.2 for Mellanox ConnectX-3 HCA

SOLVED I got troubles setting up infiniband software from OpenSUSE repository. The same card works fine with SLES12 + Mellanox OFED stack. Installing everything containing 'infiniband' from yast I ...
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0answers
575 views

Mellanox MT27500 Link to Port 1 is Down

I have Mellanox MT27500 dual port card which is installed on HP SL250s. Ubuntu 14.04.5 with 3.13.0-24-generic kernel is running on the server. Both port1 type and port 2 type are defined as eth. I ...
2
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2answers
3k views

Installing Mellanox ConnectX-2 10gbe PCIe Card on Centos 6

I just installed a Mellanox ConnectX-2 10gbe PCIe x8 Card into my server running CentOS 6.7. On boot, dmesg shows the mlx4_core driver being loaded automatically however I see no eth1 device ...
2
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4answers
649 views

set the Ca name on unmanaged mellanox switch

How can I set the Hostname/Description of a Mellanox/Infiniband unmanaged switch? I would like a way to abstractly distinguish quickly which switches are which when doing 'ibswitches' or '...
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1answer
1k views

VMware infiniband configuration

I have a server which is intended to be a vmware host. This server has two Infiniband Mellanox ConnectX-2 dual-port cards. What I want to do is to make the following setup: The first card should work ...
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2answers
787 views

Is ibdump in Mellanox OFED 2 supported in Ubuntu 14.04?

I have Ubuntu 14.04. I have Mellanox Technologies MT27500 Family [ConnectX-3] HCAs. I was able to pass all the tests like ibping and ib_rdma_lat. Now I'm running MPI tests to verify that InfiniBand is ...
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1answer
354 views

InfiniBand RDMA latency test on Xen's dom0 crashes

The short story: while setting up InfiniBand connection between two servers, I cannot complete the RDMA latency test. It crashes even with breaking the ssh connection. The long story. The first ...
3
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1answer
2k views

Is it possible to update Supermicro ConnectX-3 Firmware with newer firmware from Mellanox?

I have a Supermicro server with a X9DRT-HIBFF motherboard installed. It has on-board Infiniband based on the ConnectX-3 chipset from Mellanox. Supermicro supply firmware version 2.10.0700 and ...
4
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1answer
3k views

How do I enable SR-IOV for Mellanox ConnectX-3 Ubuntu 12.04.3?

I have a Supermicro 2027TR-HTFRF server that I'm using as a xen server. What I'm wanting to do is get SR-IOV operating for the Connectx-3 card so that I can expose Infiniband to virtual machines. ...
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1answer
579 views

Cannot use SDP in Debian Squeezy

I have severe problems running SDP on Debian Squeeze. I'm using two machines with Mellanox adapters each. My /etc/modules looks like this: mlx4_ib # Mellanox ConnectX cards #ib_mthca # some mellanox ...
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0answers
963 views

openstack, bridging, netfilter and dnat

In a recent upgrade (from Openstack Diablo on Ubuntu Lucid to Openstack Essex on Ubuntu Precise), we found that DNS packets were frequently (almost always) dropped on the bridge interface (br100). ...