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IBM Spectrum Scale and IBM Elastic Storage System Network Guide

An IBM Redpaper publication


Published on 17 February 2021

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ISBN-10: 0738459410
ISBN-13: 9780738459417
IBM Form #: REDP-5484-00

Authors: Kedar Karmarkar, John Lewars, Sandeep R. Patil, Sandeep Naik, Kevin Gildea, Rakesh Chutke and Larry Coyne

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    High-speed I/O workloads are moving away from the SAN to Ethernet and IBM® Spectrum Scale is pushing the network limits. The IBM Spectrum® Scale team discovered that many infrastructure Ethernet networks that were used for years to support various applications are not designed to provide a high-performance data path concurrently to many clients from many servers.

    IBM Spectrum Scale is not the first product to use Ethernet for storage access. Technologies, such as Fibre Channel over Ethernet (FCoE), scale out NAS, and IP connected storage (iSCSI and others) use Ethernet though IBM Spectrum Scale as the leader in parallel I/O performance, which provides the best performance and value when used on a high-performance network. This IBM Redpaper publication is based on lessons that were learned in the field by deploying IBM Spectrum Scale on Ethernet and InfiniBand networks.

    This IBM Redpaper® publication answers several questions, such as, “How can I prepare my network for high performance storage?”, “How do I know when I am ready?”, and “How can I tell what is wrong?” when deploying IBM Spectrum Scale and IBM Elastic Storage® Server (ESS).

    This document can help IT architects get the design correct from the beginning of the process. It also can help the IBM Spectrum Scale administrator work effectively with the networking team to quickly resolve issues.

    Table of Contents

    Chapter 1. IBM Spectrum Scale introduction

    Chapter 2. Network planning and best practices for IBM Spectrum Scale and IBM Elastic Storage System

    Chapter 3. Implementation recommendations

    Chapter 4. Network monitoring and troubleshooting

    Appendix A. GPFS lease configuration variables effect on expel timing flows

    Appendix B. nsdperf command examples


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