Highly Efficient Data Access with RoCE on IBM Elastic Storage Systems and IBM Spectrum Scale

A draft IBM Redpaper publication

Updated 30 November 2021

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ISBN-10: 0738460273
ISBN-13: 9780738460277
IBM Form #: REDP-5658-00

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Authors: Olaf Weiser, Gero Schmidt, Piyush Chaudhary


Remote Direct Memory Access (RDMA) enables a host to make a subset of its memory directly available to a remote host. RDMA is available on standard Ethernet-based networks by using the RDMA over Converged Ethernet (RoCE) interface. The RoCE network protocol is an industry-standard initiative by the InfiniBand Trade Association.

This IBM® Redpaper publication describes, how to set up RoCE to use within an IBM Spectrum® Scale cluster and IBM Elastic Storage® Systems.

This book is targeted toward technical professionals (consultants, technical support staff, IT Architects, and IT Specialists) who are responsible for delivering cost-effective storage solutions with IBM Spectrum Scale and IBM Elastic Storage Systems.

Table of contents

Chapter 1. Overview
Chapter 2. IBM Spectrum Scale Support Matrix
Chapter 3. RoCE Setup
Chapter 4. Function verification of the network
Chapter 5. IBM Spectrum Scale settings to use RDMA/RoCE
Chapter 6. Function verification in IBM Spectrum Scale
Appendix A. Mellanox Switch Configuration for RoCE
Appendix B. Configuring MLAG on Mellanox switches

These pages are Web versions of IBM Redbooks- and Redpapers-in-progress. They are published here for those who need the information now and may contain spelling, layout and grammatical errors. This material has not been submitted to any formal IBM test and is published AS IS. It has not been the subject of rigorous review. Your feedback is welcomed to improve the usefulness of the material to others.

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