C H A P T E R 1 Troubleshooting Overview; Gathering Information Using Common Fabric Manager Tools And Cli Commands; Common Fabric Manager Tools - Cisco 9134 - MDS Multilayer Fabric Switch Troubleshooting Manual

Chapter 1 Troubleshooting Overview
S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m
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To discover a SAN problem, use the following general SAN troubleshooting steps:
Gather information on problems in your fabric. See the
Step 1
Manager Tools and CLI Commands" section on page
Verify physical connectivity between your switches and end devices. See the
Step 2
Connectivity" section on page
Verify registration to your fabric for all SAN elements. See the
Step 3
section on page
Verify the configuration for your end devices (storage subsystems and servers).
Step 4
Verify end-to-end connectivity and fabric configuration. See the
Step 5
Connectivity" section on page
Gathering Information Using Common Fabric Manager Tools and CLI
Commands
This section highlights the Fabric Manager tools and CLI commands that are commonly used to
troubleshoot problems within your fabric. These tools and commands are a subset of what you may use
to troubleshoot your specific problem.
Each chapter in this guide may include additional tools and commands specific to the symptoms and
possible problems covered in that chapter.

Common Fabric Manager Tools

Use the following navigation paths in Fabric Manager or Device Manager to access common
troubleshooting information:
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OL-9285-05
What changed in the configuration or in the overall infrastructure immediately before the
applications started to have problems?
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Overview of switch status—In Fabric Manager, click the Switch Health Analysis icon.
End-to-end connectivity—In Fabric Manager, click the End-to-End Connectivity Analysis icon.
Fabric configuration— In Fabric Manager, click the Fabric Configuration Analysis icon.
Module status—In Device Manager, choose Physical > Modules.
Cisco SAN-OS version—In Device Manager, choose Physical > System.
View logs—In Device Manager, choose Logs > FM Server or Logs > Switch Resident.
View Fabric Manager events—In Fabric Manager, click the Events tab at the bottom of the fabric
pane.
Interface status—In Fabric Manager, choose Switches > Interfaces and select the port type you are
interested in.
View name server information— In Device Manager, choose FC > Name Server.
View FLOGI information—In Fabric Manager, choose Switches > Interfaces > FC Physical >
FLOGI.
Analyze the results of merging zones—In Fabric Manager, choose Zone > Merge Analysis.
"Gathering Information Using Common Fabric
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Cisco MDS 9000 Family Troubleshooting Guide, Release 3.x
Troubleshooting Basics
"Verifying Basic
"Verifying SAN Element Registration"
"Fibre Channel End-to-End
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