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Posted by Taras Shved on December 27, 2017
Intel SPDK NVMe-oF Target Performance Tuning. Part 2: Preparing testing environment

In the previous article, I’ve described 3 scenarios for testing NVMe-oF performance and skimmed through their hardware and software configuration. Again, what I wanna do, is measure how virtualization influences the NVMe-oF performance (maybe, it doesn’t at all). For this, I’m gonna examine how NVMe-oF performs on a bare metal configuration, and on an infrastructure with Hyper-V and ESXi deployed. In each case, I’ll also evaluate the performance of iSER transport using LIO and SPDK iSCSI. Now that you have the overall understanding of the project, it’s time to move on to configuring our testing environment.

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Posted by Didier Van Hoye on October 12, 2017
SMB Direct in a Windows Server 2016 Virtual Machine Experiment

Ever since Windows Server 2012 we have SMB Direct capabilities in the OS and Windows Server 2012 R2 added more use cases such as live migration for example. In Windows Server 2016, even more, workloads leverage SMB Direct, such as S2D and Storage Replication. SMB Direct leverages the RDMA capabilities of a NIC which delivers high throughput at low latency combined with CPU offloading to the NIC. The latter save CPU cycles for the other workloads on the hosts such as virtual machines.

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Posted by Didier Van Hoye on June 2, 2017
Why do we always see Responder CQE Errors with RoCE RDMA?

Anyone who has configured and used SMB Direct with RoCE RDMA Mellanox cards appreciates the excellent diagnostic counters Mellanox provides for use with Windows Performance Monitor. They are instrumental when it comes to finding issues and verifying everything is working correctly.

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Posted by Anton Kolomyeytsev on October 28, 2014
Mellanox: 56 Gb InfiniBand vs 40 GbE Ethernet

Awesome! Got some new goodies from Mellanox – brand new 40 GbE & InfiniBand gear. We officially love these guys! Stay tuned for new performance tests.

SX1012 12-Port 40/56 GbE SDN Switch

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