Category: NVMe over Fabrics

Optimizing NVMe over Fabrics Performance Q&A

Tom Friend Leave a comment

Almost 800 people have already watched our webcast “Optimizing NVMe over Fabrics Performance with Different Ethernet Transports: Host Factors” where SNIA experts covered the factors impacting different Ethernet transport performance for NVMe over Fabrics (NVMe-oF) and provided data comparisons of NVMe over Fabrics tests with iWARP, RoCEv2 and TCP. If you missed the live event, watch it on-demand at your convenience.

The session generated a lot of questions, all answered here in this blog. In fact, many of the questions have prompted us to continue this discussion with future webcasts on NVMe-oF performance. Please follow us on Twitter @SNIANSF for upcoming dates.

Q. What factors will affect the performance of NVMe over RoCEv2 and TCP when the network between host and target is longer than typical Data Center environment? i.e., RTT > 100ms

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Optimizing NVMe over Fabrics Performance with Different Ethernet Transports: Host Factors

Tom Friend Leave a comment

NVMe over Fabrics technology is gaining momentum and getting more traction in data centers, but there are three kinds of Ethernet based NVMe over Fabrics transports: iWARP, RoCEv2 and TCP.

How do we optimize NVMe over Fabrics performance with different Ethernet transports? That will be the discussion topic at our SNIA Networking Storage Forum Webcast, “Optimizing NVMe over Fabrics Performance with Different Ethernet Transports: Host Factors” on September 16, 2020.

Setting aside the considerations of network infrastructure, scalability, security requirements and complete solution stack, this webcast will explore the performance of different Ethernet-based transports for NVMe over Fabrics at the detailed benchmark level. We will show three key performance indicators: IOPs, Throughput, and Latency with different workloads including: Sequential Read/Write, Random Read/Write, 70%Read/30%Write, all with different data sizes. We will compare the result of three Ethernet based transports: iWARP, RoCEv2 and TCP.

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Notable Questions on NVMe-oF 1.1

Tim Lustig Leave a comment

At our recent SNIA Networking Storage Forum (NSF) webcast, Notable Updates in NVMe-oF™ 1.1we explored the latest features of NVMe over Fabrics (NVMe-oF), discussing what’s new in the NVMe-oF 1.1 release, support for CMB and PMR, managing and provisioning NVMe-oF devices with SNIA Swordfish™, and FC-NVMe-2. If you missed the live event, you can watch it here. Our presenters received many interesting questions on NVMe-oF and here are answers to them all:

Q. Is there an implementation of NVMe-oF with direct CMB access?

A. The Controller Memory Buffer (CMB) was introduced in NVMe 1.2 and first supported in the NVMe-oF 1.0 specification. It’s supported if the storage vendor has implemented this within the hardware and the network supports it. We recommend that you ask your favorite vendor if they support the feature.

Q. What is the different between PMR in an NVMe device and the persistent memory in general?

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The Latest on NVMe-oF 1.1

Tim Lustig Leave a comment

Since its introduction, NVMe over Fabrics (NVMe-oF™) has not been resting on any laurels. Work has been ongoing, and several updates are worth mentioning. And that’s exactly what the SNIA Networking Storage Forum will be doing on June 30th, 2020 at our live webcast, Notable Updates in NVMe-oF 1.1.

There is more to a technology than its core standard, of course, and many different groups have been hard at work at improving upon, and fleshing out, many of the capabilities related to NVMe-oF.  In this webcast, we will explore a few of these projects and how they relate to implementing the technology. In particular, this webcast will be covering:

  • A summary of new items introduced in NVMe-oF 1.1
  • Updates regarding enhancements to FC-NVMe-2
  • How SNIA’s provisioning model helps NVMe-oF Ethernet Bunch of Flash (EBOF) devices
  • Managing and provisioning NVMe-oF devices with SNIA Swordfish

Register today for a look at what’s new in NVMe-oF. We hope to see you on June 30th.