OpenSM service won't start
Hello, We have a couple of brand new systems - Intel S2600GZ with Windows 2008 R2 SP1 using the ConnectX2 card (MHQH19B-XTR). The issue we are having is that the OpenSM service stays in the 'Starting'...
View ArticleRe: Link speed limited to 10gbps
Finally I got approved cable and firmware reported 40gbps link speed immediately. Nice job, Mellanox, on forcing us to buy special expensive cables. I would like to _emphasize_ that the QSFP+ that NIC...
View ArticleWhy LRO is disabled by default in mlx4_en driver?
Hello, run into this problem - why the mlx4_en driver does not enable LRO by default? Is there any reason for it? It takes some time to figure it out. Especially strange is that performance tuning...
View ArticleRe: Issues with OFED 2.2.1 driver update
... was hoping someone in the community could provide some help ;-)
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Re: Link speed limited to 10gbps
Hi Philip, Seems I met the same problem with you.Could you please tell me which kind of cable you finally use?And how about transceivers? Also Mellanox product? Thanks for you help. Regards,Patrick
View ArticleRe: Link speed limited to 10gbps
This is what I got. Mellanox has approved cables/QSFP+ list of their website, I just asked re-distributor to sell me "approved" cable.ORDER DETAILS UNIT PRICE...
View ArticleRe: Link speed limited to 10gbps
Forgot to mention that this cable has two transceivers fused at the ends,
View ArticleRe: Link speed limited to 10gbps
PhilipMellanox does not lock its ports or require you to buy Mellanox cables. In fact, we constantly test third party cables in conjunction with our switches to ensure compatibility. The value...
View ArticleRe: Link speed limited to 10gbps
Thanks Philip, Hope it can work also in our system. Regards,Patrick
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Re: Link speed limited to 10gbps
Hi Anand, We met the similar issue with Philip's.CX314 card, two 40G ports connected back to back. We tested it both on Freebsd7.0 and CentOS 7.0.But the speed seen were always 10G.We didn't use...
View ArticleRe: Link speed limited to 10gbps
Hello, Anand, Colfax International never communicated to me that you are expecting mstdump, I've plugged back generic cable/QSFP+, dumps are attached. Here is a link to generic MPO cable & QSFP+...
View ArticleRe: Link speed limited to 10gbps
PatrickCould you please open a separate case with Support. We would like to triage it as if it were an independent issue.ThanksAnand
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Re: Link speed limited to 10gbps
Philip,I had updated the ticket we created for this issue. Anyway, for now I have everything I need. Look out for an email from Mellanox Support Admin for further communication ThanksAnand
View ArticleRe: Error /hca_self_test.ofed: line 165: [: too many arguments
All:Same exact symptoms here when running MLNX OFED 2.1-1.0.6 on RHEL 6.5 x86. No errors during mlnxofedinstall at all, nothing indicating that all RPM's did not install. I am going to attempt...
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Re: Connect QSFP to QSFP (custom board design)
You should use regular MPO cable to connect between two boards with QSFP modules (i.e. "straight" and not "crossover")
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Re: Cavo per infiniBand su switch Mellanox SX6036
Hello Marco, For this issue, please contact Mellanox Support for additional assistance.Thanks.
View ArticleMellanox Infiniband ConnectX-2 VPI interfaces not populating in ESXi 5.5u1
I have tested the IB adapter in 3 different PCIE slots with no change in VMWare.The adapter works correctly in Windows 2008 R2 & Windows 2012 R2. > Updated firmware on Infiniband adapter...
View Article"Missing UAR" kernel error on boot, ConnectX-3 not detected by the OS
Hello, I received a new machine recently (Dell r620) with 2 MT27500 [ConnectX-3] cards and during my first tests i noticed that one of these cards wasn't detected on boot. (Note : the first card works...
View ArticleRe: QSFP+ Amber & Arista 7050 SFP+ green but can't pass traffic
I wanted to close the loop for Mellanox and the public on this issue. Unfortunately we were not able to motivate the network engineer to try the configuration changes outlined by Mellanox. As a work...
View ArticleRe: QSFP+ Amber & Arista 7050 SFP+ green but can't pass traffic
GageThank you for the update, good to know everything is working now. Anand
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