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Re: lldp not available
I don't think my management wants to buy anything new for this set of switches. But at least you solved the mystery. Thanks a lot for your time!
View ArticleRe: On a MSX-6036 switch, how do I set the date on the switch?
Check this also HowTo enable NTP on Mellanox switches
View ArticleWindows IO Completion Ports
Hello I have an application that makes heavy use of async Windows IO Completion ports, and I am looking to reduce the latency and cpu load as much as possible.Does the hardware acceleration capability...
View ArticleProblem with ConnectX-2 Card! transfer-rate not simetrical!
Hi, I have 2 computers both with a mellanox ConnectX-2 Card and Windows 8.1.1 x64 updated. I use OFED 4.95 driver and I have the latest firmware for both cards. I use arista transceivers of 10GB....
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Re: Windows IO Completion Ports
Hi Fergus- Can you tell me a little more about your application and existing network infrastructure? What bandwidth are you using currently, and are you planning on increasing it? How many hosts are...
View ArticleRe: I have windows 2012R2 OS on Dell R710.When i connect mellanox nics and...
Thanks guys,Im able to get access to nics now. But the performance is not up to the mark. Should I do any changes on the nic parameters, as of now i have kept the default settings. Im using windows...
View ArticleRe: Will this work? HP 10GB Mellanox Connectx-2 PCIe 10GBe and Windows 8.1 +...
If case any of You wondered, Yes, it does work. TCP/iP perfectly, Windows 8.1/Server 2012R2 and 10. Works like charm, they just heat up a bit, so I suggest to cool them actively wtih 40 mm fan, which...
View ArticleRe: I have windows 2012R2 OS on Dell R710.When i connect mellanox nics and...
Hi,Could you follow this post?Can you describe more about your performance issues?What is the connectivity of your setup? Quick Reference for Dell Storage with Microsoft Storage Spaces Ophir.
View ArticleMellanox ConnectX-3 Debian: mlx4_en 3.0 driver help; CQE error vendor...
Mellanox crashed our SAN connections this morning with bad drivers. Thousands of lines like below in our kern.log: ...Aug 5 09:04:55 khazix kernel: [169598.036781] mlx4_en: eth4: CQE error - vendor...
View ArticleRe: Windows IO Completion Ports
Latency and CPU usage are my prime concerns, latency being paramount.The bandwidth is relatively low (perhaps 500mbps). I am connecting to a single server using web requests over https, but with...
View ArticleRe: Mellanox OFED 3.0 mlnx-ofa_kernel failed to build in sles12
I filed a ticket on this issue.
View ArticleThe show power command can not execute in MIS5030Q. Product release=1.0.2
The show power command can not execute in MIS5030Q. Product release=1.0.2 It apeaers red LED on at power supply.I understand the fail of power supply.But, the command can not execute fail state. ibsw...
View ArticleRe: CentOS 7 KVM-SR-IOV Performance?
Hi Mikyung, Are you sure your issue is not related to other virtualisation factors? E.g., are you pinning your VMs to CPU cores and exposing the host NUMA topology to them? If your VMs have memory...
View ArticleRe: CentOS 7 KVM-SR-IOV Performance?
Thanks, Blair. Surely I checked the NUMA topology. I have two NUMA nodes and each has 8 cores. While pinning VM to different cores/NUMA nodes, I've checked the MPI Bandwidth Performance. In case of...
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what happens when RoCE is run over lossy L2?
dear all , what happens if iSER is run on a lossy L2 link ?
View ArticleRe: CentOS 7 KVM-SR-IOV Performance?
Hi Mikyung, What does the NUMA topology look like inside your VMs, i.e., are you pinning memory nodes as well as CPUs? Do you have cpu numa xml elements in your libvirt domain xml, e.g., like: ......
View ArticleRe: what happens when RoCE is run over lossy L2?
I wouldn't recommend. one of the more basic prerequisites for RoCE and other RDMA applications (like iSER) is a reliable connection. Cheers
View ArticleRe: what happens when RoCE is run over lossy L2?
Dear Yairi, not that i am pondering over running it over lossy. I am interested to know it theoretically. Regards, Rajesh Kumar Mallah
View ArticleRe: what happens when RoCE is run over lossy L2?
This should answer your open questions: RoCE v2 Considerations
View ArticleRe: Problem with ConnectX-2 Card! transfer-rate not simetrical!
Hi Enric, Beside the fact that your test servers are not alike and it is probably not going to ever be the same, measuring performance using a file transfer is not the right way of finding the root...
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