Book description
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
- Front cover
- Notices
- Preface
- 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
- 4.1 Network-related issues overview
- 4.2 Network monitoring with IBM Spectrum Scale GUI
- 4.3 Network troubleshooting with IBM Spectrum Scale mmdiag command
- 4.4 Verifying network with IBM Spectrum Scale mmnetverify command
- 4.5 Testing network performance with IBM Spectrum Scale nsdperf tool
- 4.6 IBM Spectrum Scale mmuserauth check
- 4.7 Using IBM Spectrum Scale log messages to debug network-related issues
- 4.8 Node expels because of network issues
- 4.9 Understanding and resolving the effect of network packet loss
- 4.10 Resource issues
- Appendix A. IBM Spectrum Scale lease configuration variables effect on expel timing flows
- Appendix B. nsdperf command examples
- Related publications
- Back cover
Product information
- Title: IBM Spectrum Scale and IBM Elastic Storage System Network Guide
- Author(s):
- Release date: February 2021
- Publisher(s): IBM Redbooks
- ISBN: 9780738459417
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