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35-1
Cisco MDS 9000 Family Fabric Manager Configuration Guide
OL-6965-03, Cisco MDS SAN-OS Release 2.x
35
Troubleshooting Your Fabric
There are several things you can do to use Fabric Manager to troubleshoot your fabric.
This chapter contains the following topics:
• Troubleshooting Tools and Techniques, page 35-1
• Analyzing Switch Device Health, page 35-3
• Analyzing Switch Fabric Configuration, page 35-5
• Analyzing End-to-End Connectivity, page 35-6
• Configuring a Fabric Analyzer, page 35-7
• Using Traceroute and Other Troubleshooting Tools, page 35-13
• Analyzing the Results of Merging Zones, page 35-13
• Issuing the Show Tech Support Command, page 35-14
• Locating Other Switches, page 35-15
• Getting Oversubscription Information in Device Manager, page 35-16
Troubleshooting Tools and Techniques
Multiple techniques and tools are available to monitor and trouble shoot the Cisco MDS 9000 Family of
switches. These tools provide a complete, integrated, multi-level analysis solution.
Fabric Manager Server—The Cisco Fabric Manager Server provides a long-term, high level view of
storage network performance. Fabric wide performance trends can be analyzed using Performance
Manager. It provides the starting point for deeper analysis to resolve network hot-spots.
Device Manager—If a performance problem is detected with the Fabric Manager Server, the Cisco
Device Manager can be used to view port level statistics in real-time. Details on protocols, errors,
discards, byte and frame counts are available. Samples can be taken as frequently as every 2 seconds,
and values can be viewed in text form or graphically as pie, bar, area and line changes.
Traffic Analyzer—Another option is to launch the Cisco Traffic Analyze for Fibre Channel from the
Fabric Manager Server to analyze the traffic in greater depth. The Cisco Traffic Analyzer allows you to
breakdown traffic by VSANs and protocols and to examine SCSI traffic at a logical unit number (LUN)
level.