Town Hall Meeting: Networking is Fast Becoming the Bottleneck for Storage and Compute, How Do We Fix It?

Lane Patterson


Lane Patterson





Tom Edsall picture silhouette Dave Meyer picture Allwyn Sequeira Andrew Warfield

  • Tom Edsall, Cisco Systems
  • Roy Kaser, Hewlett Packard Enterprise
  • David Meyer, Brocade
  • Allwyn Sequeira, VMware
  • Andrew Warfield, Coho Data

Session Description

The ONUG Community Town Hall Meeting provides a forum for open and frank discussion between IT business leaders and industry leaders to explore issues associated with operationalizing open infrastructure technologies. This Town Hall Meeting focuses on how to balance or optimize traffic flows within a converged network infrastructure where ethernet supports datagram and storage traffic. In addition to compute, now with solid state technology, storage media is no longer the performance bottleneck; instead, the network has become the bottleneck.

With ToR network switch performance increasing significantly to the 500ns latency range, there are still significant networking bottlenecks within converged infrastructure. Designs that force storage traffic to flow to and from a server with 10s to 100s and with container deployment on the rise, expect the number of virtual endpoints to hit 1000+, thus creating a significant bottleneck. Workload mobility makes this worse. Two-tier leaf-spin network architectures and SDN help, as can scale-out storage solutions such as HDFS that can localize blocks of data close to compute.

In short, storage is no longer the bottleneck thanks to non-volatile memory, CPUs and networks are not waiting for data; in fact, the opposite is occurring. To address this topic, the ONUG Board chose its Town Hall meeting format where the vendor community takes the stage and answers questions from the ONUG Community.