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™
Sun StorEdge 3900 and 6900
Series Troubleshooting Guide
Sun Microsystems, Inc.
4150 Network Circle
Santa Clara, CA 95054 U.S.A.
650-960-1300
Part No. 816-4290-11
March 2002, Revision A
Send comments about this document to:docfeedback@sun.com
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Copyright 2002 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, CA 95054 U.S.A. All rights reserved. This product or document is distributed under licenses restricting its use, copying, distribution, and decompilation. No part of this product or document may be reproduced in any form by any means without prior written authorization of Sun and its licensors, if any. Third-party software, including font technology, is copyrighted and licensed from Sun suppliers. Parts of the product may b
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Contents 1. Introduction 1 Predictive Failure Analysis Capabilities 2 2. General Troubleshooting Procedures 3 Troubleshooting Overview Tasks 3 Multipathing Options in the Sun StorEdge 6900 Series 7 Alternatives to Sun StorEdge Traffic Manager 8 ▼ To Quiesce the I/O 8 ▼ To Unconfigure the c2 Path 8 ▼ To Suspend the I/O 10 ▼ To Return the Path to Production 10 ▼ To View the VxDisk Properties 11 ▼ To Quiesce the I/O on the A3/B3 Link 13 ▼ To Suspend the I/O on the A3/B3 Link 13 ▼ To Return the Path
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Command Line Test Examples 19 qlctest(1M) 19 switchtest(1M) 20 Storage Automated Diagnostic Environment Event Grid 21 ▼ To Customize an Event Report 21 3. Troubleshooting the Fibre Channel Links 23 A1/B1 Fibre Channel (FC) Link 23 ▼ To Verify the Data Host 25 FRU Tests Available for A1/B1 FC Link Segment 26 ▼ To Isolate the A1/B1 FC Link 28 A2/B2 Fibre Channel (FC) Link 29 ▼ To Verify the Host Side 31 ▼ To Verify the A2/B2 FC Link 33 ▼ To Isolate the A2/B2 FC Link 33 A3/B3 Fibre Channel (FC) Lin
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▼ To Verify Configuration Settings 47 ▼ To Clear the Lock File 50 5. Troubleshooting Host Devices 53 Host Event Grid 53 ▼ Using the Host Event Grid 53 Replacing the Master, Alternate Master, and Slave Monitoring Host 57 ▼ To Replace the Master Host 57 ▼ To Replace the Alternate Master or Slave Monitoring Host 58 Conclusion 59 6. Troubleshooting Sun StorEdge FC Switch-8 and Switch-16 Devices 61 Sun StorEdge Network FC Switch-8 and Switch-16 Switch Description 61 ▼ To Diagnose and Troubleshoot Swi
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Virtualization Engine LEDs 72 Power LED Codes 73 Interpreting LED Service and Diagnostic Codes 73 Back Panel Features 74 Ethernet Port LEDs 74 Fibre Channel Link Error Status Report 75 ▼ To Check Fibre Channel Link Error Status Manually 76 Translating Host Device Names 78 ▼ To Display the VLUN Serial Number 79 Devices That Are Not Sun StorEdge Traffic Manager-Enabled 79 Sun StorEdge Traffic Manager-Enabled Devices 80 ▼ To View the Virtualization Engine Map 81 ▼ To Failback the Virtualization Eng
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Troubleshooting the T1/T2 Data Path 102 Notes 102 T1/T2 Notification Events 103 Sun StorEdge T3+ Array Storage Service Processor Verification 106 T1/T2 FRU Tests Available 107 Notes 108 T1/T2 Isolation Procedures 108 Sun StorEdge T3+ Array Event Grid 109 ▼ Using the Sun StorEdge T3+ Array Event Grid 109 Replacing the Master Midplane 122 ▼ To Replace the Master Midplane 122 Conclusion 122 9. Troubleshooting Ethernet Hubs 123 setupswitch Exit Values 141 Contents vii For Internal Use Only
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viii Sun StorEdge 3900 and 6900 Series Troubleshooting Guide • March 2002
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List of Figures FIGURE 2-1 Sun StorEdge 3900 Series Fibre Channel Link Diagram 16 FIGURE 2-2 Sun StorEdge 6900 Series Fibre Channel Link Diagram 17 FIGURE 3-1 Data Host Notification of Intermittent Problems 23 FIGURE 3-2 Data Host Notification of Severe Link Error 24 FIGURE 3-3 Storage Service Processor Notification 24 FIGURE 3-4 A2/B2 FC Link Host Side Event 29 FIGURE 3-5 A2/B2 FC Link Storage Service Processor Side Event 30 FIGURE 3-6 A3/B3 FC Link Host-Side Event 35 FIGURE 3-7 A3/B3 FC Link S
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FIGURE 7-6 Path Failure —I/O Routed through Both HBAs 94 FIGURE 7-7 Virtualization Engine Event Grid 95 FIGURE 8-1 Storage Service Processor Event 103 FIGURE 8-2 Virtualization Engine Alert 105 FIGURE 8-3 Manage Configuration Files Menu 106 FIGURE 8-4 Example Link Test Text Output from the Storage Automated Diagnostic Environment 107 FIGURE 8-5 Sun StorEdge T3+ array Event Grid 109 List of Figures x
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Preface The Sun StorEdge 3900 and 6900 Series Troubleshooting Guide provides guidelines TM for isolating problems in supported configurations of the Sun StorEdge 3900 and 6900 series. For detailed configuration information, refer to the Sun StorEdge 3900 and 6900 Series Reference Manual. The scope of this troubleshooting guide is limited to information pertaining to the components of the Sun StorEdge 3900 and 6900 series, including the Storage Service Processor and the virtualization engines in
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Chapter 7 provides detailed information for troubleshooting the virtualization engines. Chapter 8 describes how to troubleshoot the Sun StorEdge T3+ array devices. Also included in this chapter is information about the Explorer Data Collection Utility. Chapter 9 discusses ethernet hub troubleshooting. Information associated with the 3COM Ethernet hubs is limited in this guide, however, as this is third-party information. Appendix A provides virtualization engine references, including SRN and SNM
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Typographic Conventions Typeface Meaning Examples AaBbCc123 The names of commands, files, Edit your.login file. and directories; on-screen Use ls -a to list all files. computer output % You have mail. AaBbCc123 What you type, when % su contrasted with on-screen Password: computer output AaBbCc123 Book titles, new words or terms, Read Chapter 6 in the User’s Guide. words to be emphasized These are called class options. You must be superuser to do this. Command-line variable; replace To delete a f
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Related Documentation Product Title Part Number Late-breaking News • Sun StorEdge 3900 and 6900 Series Release Notes 816-3247 Sun StorEdge 3900 and 6900 • Sun StorEdge 3900 and 6900 Series Site Preparation Guide 816-3242 series hardware information • Sun StorEdge 3900 and 6900 Series Regulatory and Safety 816-3243 Compliance Manual • Sun StorEdge 3900 and 6900 Series Hardware Installation and 816-3244 Service Manual Sun StorEdge T3 and T3+ • Sun StorEdge T3 and T3+ Array Start Here 816-0772 arra
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Accessing Sun Documentation Online A broad selection of Sun system documentation is located at: http://www.sun.com/products-n-solutions/hardware/docs A complete set of Solaris documentation and many other titles are located at: http://docs.sun.com Sun Welcomes Your Comments Sun is interested in improving its documentation and welcomes your comments and suggestions. You can email your comments to Sun at: docfeedback@sun.com Please include the part number (816-4290-10) of your document in the subj
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xvi Sun StorEdge 3900 and 6900 Series Troubleshooting Guide • March 2002
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CHAPTER 1 Introduction The Sun StorEdge 3900 and 6900 series storage subsystems are complete preconfigured storage solutions. The configurations for each of the storage subsystems are shown in TABLE 1-1. TABLE 1-1 Additional Array Partner Groups Sun StorEdge Sun StorEdge T3+ Supported with Fibre Channel Array Partner Groups Optional Additional Series System Switch Supported Supported Expansion Cabinet Sun StorEdge Sun StorEdge Two 8-port 1to4 Not applicable 3900 series 3910 system switches Sun S
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Predictive Failure Analysis Capabilities The Storage Automated Diagnostic Environment software provides the health and monitoring functions for the Sun StorEdge 3900 and 6900 series systems. This software provides the following predictive failure analysis (PFA) capabilities. ■ FC links—Fibre Channel links are monitored at all end points using the link FC- ELS link counters. When link errors surpass the threshold values, an alert is sent. This enables Sun personnel to replace components that are
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CHAPTER 2 General Troubleshooting Procedures This chapter contains the following sections: ■ “Troubleshooting Overview Tasks” on page 3 ■ “Multipathing Options in the Sun StorEdge 6900 Series” on page 7 ■ “Fibre Channel Links” on page 15 ■ “Storage Automated Diagnostic Environment Event Grid” on page 21 Troubleshooting Overview Tasks This section lists the high-level steps to isolate and troubleshoot problems in the Sun StorEdge 3900 and 6900 series. It offers a methodical approach and lists the
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1. Discover the error by checking one or more of the following messages or files: ■ Storage Automated Diagnostic Environment alerts or email messages ■ /var/adm/messages ■ Sun StorEdge T3+ array syslog file ■ Storage Service Processor messages ■ /var/adm/messages.t3 messages ■ /var/adm/log/SEcfglog file 2. Determine the extent of the problem by using one or more of the following methods: ■ Storage Automated Diagnostic Environment Topology view ■ Storage Automated Diagnostic Environment Revision
