Paper Title: Comparing NVMe-oF on RoCE vs. TCP

Paper Abstract: Everyone knows that NVMe-oF is the fastest way to network storage and that it can run on different transports, with the newest transport being TCP/IP. But what are the real pros and cons of using RDMA over RoCE vs. using TCP? Realistic test results are used to present the differences in not just throughput and average latency, but long-tail latency under realistic loads. Testing also demonstrates that newer RDMA NICs can provide RoCE RDMA performance without making network changes traditionally required to support RoCE.

Paper Author: John Kim, Director of Storage Marketing, NVIDIA

Author Bio: John F. Kim has been Director of Storage Marketing at Mellanox Technologies since 2013, where he helps storage customers and vendors benefit from high performance interconnects and smart offloads, including RDMA (Remote Direct Memory Access). After starting his high tech career in IT helpdesk and network administration, John spent several years on solution marketing, product management, and alliances at enterprise software companies, followed by 12 years creating storage solutions and alliances at NetApp and EMC, before moving to Mellanox. John closely follows the areas of flash, storage fabrics, software-defined storage, and hyperconverged infrastructure, and is also chair of the SNIA Networking Storage Forum. He has a BA in Economics from Harvard University. Follow him on Twitter: @Tier1Storage