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Contents
iv
Cisco MDS 9000 Family Troubleshooting Guide, Release 3.x
OL-9285-05
Implementing Syslog with the CLI 1-12
Troubleshooting with Logs 1-13
Viewing Logs with Fabric Manager 1-13
Viewing Logs with the CLI 1-13
Viewing the Log from the Supervisor 1-14
Viewing NVRAM logs 1-14
Contacting Customer Support 1-15
CHAPTER
2 Troubleshooting Installs, Upgrades, and Reboots 2-1
Overview 2-1
Guidelines 2-2
Guidelines for Installations 2-2
Guidelines for Upgrading 2-2
Guidelines for Reboots 2-4
Disruptive Module Upgrades 2-4
Troubleshooting a Nondisruptive Upgrade on a Fabric Switch 2-4
Troubleshooting Fabric Manager Installations 2-5
Verifying Cisco SAN-OS Software Installations 2-6
Troubleshooting Cisco SAN-OS Software Upgrades and Downgrades 2-7
Software Installation Reports an Incompatibility 2-7
Diagnosing Compatibility Issues 2-7
Software Installation Ends with Error 2-9
Installing SAN-OS Software Using Fabric Manager 2-10
Installing Cisco SAN-OS Software from the CLI 2-11
Troubleshooting Cisco SAN-OS Software System Reboots 2-13
Power On or Switch Reboot Hangs 2-13
Corrupted Bootflash Recovery 2-14
Recovery Using BIOS Setup for Supervisor-1 2-16
Recovery from the loader> Prompt on Supervisor-2 Modules 2-19
Recovery from the loader> Prompt on Supervisor-1 Modules 2-20
Recovery from the switch(boot)# Prompt 2-21
Recovery for Switches with Dual Supervisor Modules 2-22
Recovering One Supervisor Module With Corrupted Bootflash 2-23
Recovering Both Supervisor Modules With Corrupted Bootflash 2-24
Recognizing Error States 2-25
Switch or Process Resets 2-26
Recoverable System Restarts 2-27
Unrecoverable System Restarts 2-31
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