Developers Guide

Fabric OS Troubleshooting and Diagnostics Guide 81
53-1003141-01
Chapter
10Diagnostic Features
In this chapter
• Fabric OS diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
• Diagnostic information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
• Power-on self-test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
• Switch status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
• Using the spinFab and portTest commands . . . . . . . . . . . . . . . . . . . . . . . . . 87
• Port information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
• Equipment status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
• System message log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
• Port log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
• Syslogd configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
• Automatic trace dump transfers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Fabric OS diagnostics
The purpose of the diagnostic subsystem is to evaluate the integrity of the system hardware.
Diagnostics are invoked in the one of the following ways:
• Automatically during the power-on self-test (POST).
• Automatically on an individual blade whenever it is installed into a director chassis.
• Manually using Fabric OS CLI commands.
The error messages generated during these test activities are sent to the serial console and system
message logs (output formats may differ slightly).
Use the diagHelp command to receive a list of all available diagnostic commands.
Diagnostic information
On the switch, you can enter the supportShow command to dump important diagnostic and status
information to the session screen, where you can review it or capture its data. If you are using a
Telnet client, you may have to set up the client to capture the data prior to opening the session.
Most information can be captured using the supportSave command and downloaded by FTP off the
switch, but when you are collecting information from specialized commands, such as supportShow,
this information must be captured using a Telnet client.