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Re: Simultanous TX/RX does not achieve 80Gbps (ConnectX-3 )?
The theoretical max numbers in your case will be limited with following: 1. PCIe limit: PCIe 3.0 is 8 GT/s per lane but effectively it delivers about 1.54% less data due to 128/130 encoding, so...
View ArticleRe: controllers Mellanox MHRH19-XTC, Windows Server 2012R2
Question unchecked because urgently needed to raise the cluster. Again had to return to Windows Server 2008R2.
View ArticleRe: controllers Mellanox MHRH19-XTC, Windows Server 2012R2
But here, too, is not all right, I can not configure the card for maximum performance, lack experience in this business I'm a newbie.Would be very happy if anyone can help, it is unclear what drivers...
View ArticleRe: controllers Mellanox MHRH19-XTC, Windows Server 2012R2
When you run the test MPI Ping Pong: latency getting the following warning:MPI Ping-Pong: LatencyTest Result: SuccessFailed nodes list...
View ArticleRe: IPoIB iscsi disconnects. CQE retry exceeded
Hi Andre, I updated to 2.2, however now my xenserver Kernel panics when loading openibd: Unloading HCA driver: [ OK ] Message from syslogd@ at Mon Jul 7 19:24:45...
View Articleactivate in-band IP access to grid director 4036
Hi, my setup looks like server2 ---seriallink--- 4036(192.168.20.254/24) -----QSFPcable----- server1(192.168.20.1/24) Result: on server1 the switch is...
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NFS over RDMA on CentOS 6.3 Problem
Trying to setup NFS over RDMA to get best possible performance, but running into a version issue. OS: CentOS release 6.3 (Final)Kernel: 2.6.32-279.el6.x86_64OFED:...
View ArticleRe: IPoIB iscsi disconnects. CQE retry exceeded
Have you checked known issues in the release notes ? I see items 58 and 59 for xen: http://www.mellanox.com/related-docs/prod_software/Mellanox_OFED_Linux_Release_Notes_2_2-1_0_1.pdfPlease share more...
View ArticleRe: IPoIB iscsi disconnects. CQE retry exceeded
The issue appears to be with HP ConnectX cards, we were using 2 of these in our cluster with fw 2.7, we downloaded and burnt 2.8 (sourced from hp site) after carefully checked PSID to match the...
View ArticleRe: IPoIB iscsi disconnects. CQE retry exceeded
I’m assuming you’ve rebooted host after f/w upgrade since mstflint will report new fw without reboot but card will not use it unless you reboot…If you still can access HCA with mstflint please get and...
View ArticleRe: NFS over RDMA on CentOS 6.3 Problem
You might have a mix of driver module versions on the system. Make sure you have restarted openibd after installing MLNX_OFED_LINUX-1.5.3-4.0.42-rhel6.3-x86_64 - it is likely that you still have kernel...
View Articleubuntu14.04 infiniband set problems
1 first install the driverMLNX_OFED_LINUX-2.2-1.0.1-ubuntu14.04-x86_64.iso2 ibhosts can see Ca : 0x002590ffff17b868 ports 1 "node03 HCA-1"Ca : 0x002590ffff17bd40 ports 1 "node02 HCA-1"Ca :...
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Re: 56 GbE over a ConnectX-3 VPI adapter
for back-2-back 56GbE connections between ConnectX-3 and ConnectX-3 Pro, the solution provided in this post is still relevent
View ArticleAm i able to use SFP+ 10Gbase-SR with MCX312A-XCBT adapter?
Greetings.I recently bought the MCX312A-XCBT adapter not knowing which optical module i was going to use. It turned out that the sfp+ 10gbase-SR is actually needed. The question is does this adapter...
View ArticleRe: Mixing OFED 1.5.3 and 2.2 in the same network?
So I have been delving into this and I've found the following: I have managed to compile ofed 1.5.3 in CentOS 6.5 after following this post instructions (el5.10 ofed build problem.) My infiniband nodes...
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Is there a way to show what SFP adapters are installed without pulling them...
I currently have ConnectX-2 cards installed on my servers with SFP adapters installed. I would like to query the SFPs and find out what they are without pulling them from the machines. The servers are...
View ArticleRe: Re: Mixing OFED 1.5.3 and 2.2 in the same network?
MLNX OFED 2.2 is preferred and it has significant improvements in both stability and performance of IPoIB. However if you have older Linux versions that are not supported by 2.2 (like RHEL 5.x kernels)...
View ArticleRe: Am i able to use SFP+ 10Gbase-SR with MCX312A-XCBT adapter?
MCX312A-XCBT can be used with both SR and LR modules - for example with these Mellanox modules (also qualified with similar modules from other major vendors):MFM1T02A-LR Mellanox optical module, ETH...
View ArticleRe: Am i able to use SFP+ 10Gbase-SR with MCX312A-XCBT adapter?
I'm not able to buy exactly MFM1T02A-SR because they are out of stock everywhere in Moscow. Sales manager just told me that this module is Finistar FTLX8571D3BCL-ME branded Mellanox. FTLX8571D3BCL...
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