IBM b型SAN部署指南：8Gbpsdirector与交换机实战

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本IBM Redbooks出版物《实施IBM b型SAN与8 Gbps Director和Switches》是一份针对数据中心 Fabric Manager v10.1.4和Fabric Operating System v6.4.x版本的专业指南。它旨在为读者提供在部署IBM b型存储区域网络（SAN）架构时所需的关键信息，包括但不限于系统配置、安装步骤、日常任务管理和性能优化。本书详细介绍了IBM b型产品系列的最新发展，涵盖了8 Gbps速度的Director和Switch组件，这些设备对于实现高带宽、低延迟的存储环境至关重要。通过阅读这本书，读者可以提升自己的技能和对IBM SAN技术的理解，特别是在设计和实施过程中如何提高存储性能、可靠性和可扩展性。书中内容涵盖以下核心知识点： 1. **8 Gbps技术**：强调了8 Gbps连接的重要性，这在现代数据中心环境中对于处理大数据、高性能计算和云计算应用是必不可少的，能显著提升数据传输速度和系统整体效能。 2. **IBM b-type SAN架构**：介绍IBM b型SAN的组成部分，如Director控制器和Switch设备，它们如何协同工作以创建一个统一的存储资源池，以及它们在虚拟化环境中的角色。 3. **安装和配置**：提供了详细的安装过程和配置指南，包括硬件和软件的准备、网络设置、存储映射以及安全设置等关键步骤。 4. **日常管理任务**：涵盖了日常维护、监控、故障排除和性能调优等方面的实践技巧，帮助管理员高效地运营和维护SAN环境。 5. **案例研究和实战经验**：书中可能包含实际项目案例和专家建议，分享了IBM b-type SAN在不同场景下的最佳实践，有助于读者理解和应用到自己的工作中。 6. **安全与合规性**：提醒用户注意版权和受限使用的信息，确保在合法范围内使用IBM的产品和支持资料，特别是对于美国政府用户，有特定的限制条件。 7. **作者团队**：书中列出了作者的名字，Jon Tate、Uwe Dubberke、Michael Engelbrecht、Shanmuganthan Kumaravel和Jose Rodriguez Ruibal，他们可能在各自的领域具有深厚的专业知识和丰富的实践经验。 8. **参与和贡献**：鼓励读者成为作者，提示了提交评论和反馈的方式，有助于持续改进和更新这份宝贵的参考资料。《实施IBM b型SAN与8 Gbps Directors和Switches》是一本实用的指南，不仅适合存储工程师、系统管理员，也适合对IBM SAN技术感兴趣的IT专业人士，帮助他们在实施和维护过程中做出明智决策和优化性能。

xiv Implementing an IBM b-type SAN with 8 Gbps Directors and Switches

15.3 Traffic Isolation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 705

15.3.1 TI zone failover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 707

15.3.2 FSPF routing rules and traffic isolation . . . . . . . . . . . . . . . . . . . . . 709

15.3.3 TI zone misconfiguration example . . . . . . . . . . . . . . . . . . . . . . . . 711

15.3.4 Supported configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 712

15.3.5 Virtual Fabric configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 712

15.3.6 TI zones using CLI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 713

15.3.7 Other zoning CLI commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . 719

15.3.8 TI zones with DCFM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 721

15.4 QoS: SID/BID traffic prioritization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 724

15.4.1 QoS zones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 726

15.4.2 QoS E_Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 728

15.4.3 Supported configurations and limitations . . . . . . . . . . . . . . . . . . . 729

15.4.4 QoS with CLI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 730

15.4.5 Web Tools and QoS Zones. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 734

15.4.6 DCFM and QoS zones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 736

Chapter 16. Performance monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . 739

16.1 Performance monitoring with Web Tools . . . . . . . . . . . . . . . . . . . . . . . 740

16.2 Basic Performance Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 744

16.2.1 Basic Performance Monitoring with Web Tools . . . . . . . . . . . . . . 745

16.2.2 Throughput examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 745

16.3 Advanced Performance Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . 753

16.3.1 Virtual Fabrics considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 753

16.3.2 Performance Monitors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 754

16.3.3 Displaying Performance Monitors with the CLI . . . . . . . . . . . . . . . 755

16.3.4 SID/DID Performance Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . 755

16.3.5 End-to-end monitoring with DCFM . . . . . . . . . . . . . . . . . . . . . . . . 761

16.3.6 Filter-based performance monitoring . . . . . . . . . . . . . . . . . . . . . . 762

16.3.7 ISL performance monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 768

16.3.8 Top Talker monitors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 769

16.3.9 Top Talkers monitors in port mode . . . . . . . . . . . . . . . . . . . . . . . . 771

16.3.10 Top Talkers monitors in fabric mode. . . . . . . . . . . . . . . . . . . . . . 774

16.3.11 Top Talkers monitoring considerations . . . . . . . . . . . . . . . . . . . . 776

16.3.12 Trunk monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 777

16.3.13 Saving and restoring the monitoring configuration . . . . . . . . . . . 777

16.4 SCSI commands with Web Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 778

16.4.1 SCSI versus IP traffic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 780

16.4.2 ALPA error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 781

16.5 Bottleneck detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 781

16.5.1 Latency bottleneck . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 782

16.5.2 Congestion bottleneck. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 782

Contents xv

Chapter 17. Health and troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . 785

17.1 SAN Health . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 786

17.1.1 New features of SAN Health . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 786

17.1.2 Implementing SAN Health. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 787

17.2 Error logs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 806

17.2.1 Capturing a trace dump. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 806

17.2.2 The supportsave command. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 807

17.2.3 DCFM support information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 812

17.3 General troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 812

17.3.1 Troubleshooting device connectivity . . . . . . . . . . . . . . . . . . . . . . . 813

17.3.2 Trace route . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 816

17.4 Port Fencing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 819

17.4.1 Port Fencing using DCFM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 820

17.4.2 Port Fencing using CLI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 828

17.4.3 Enabling Port Fencing for E_Port class link loss. . . . . . . . . . . . . . 834

17.4.4 Testing the configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 834

17.4.5 Basic troubleshooting commands . . . . . . . . . . . . . . . . . . . . . . . . . 835

Related publications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 841

IBM Redbooks publications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 841

Other resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 841

Referenced websites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 842

Help from IBM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 843

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 845

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