Brocade ICX 7750 Hardware Installation Guide - Manual (Page 42)

32 Brocade ICX 7750 Hardware Installation Guide
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Diagnostic tests and monitoring
Diagnostic tests and monitoring
Brocade FastIron software includes diagnostic tests to help you troubleshoot the hardware. System
diagnostic software is designed to fulfill the purpose of offline diagnostics. In offline diagnostics,
you must turn the diagnostic flags on or off to execute diagnostic tests during the next bootup.
The CLI commands for system diagnostic tests are dm diag and dm alt-diag. These diagnostic tests
verify all available hardware components including:
• I2C devices
• EEPROMS
• CPU packet
• Test MAC alignment
• Line rate
During system diagnostic testing, the system is completely under the control of the diagnostic
software. All hardware components are verified, and results are displayed on the console. In cases
where a failure is detected, results and corrective actions will be displayed. After the system
diagnostic testing is complete, the system exits from the diagnostic mode and reloads the system
for normal operation.
TABLE 16 Power Supply Unit LED
LED state Status of hardware Recommended action
Off (no light) PSU is not powered on. Verify that the PSU power cord is
connected to a functioning power
source.
Steady green PSU is on and functioning properly. No action required.
Blinking green
(with power cord
connected)
External AC input parameters are within an
acceptable range but there is no DC output or it
is disabled. Replace the power supply.
Steady amber PSU has no DC output. Replace the power supply.
TABLE 17 Expansion module power LED
LED state Status of hardware Recommended action
Off (no light) Module is not powered on. No action required.
Steady green Module is on and functioning properly. No action required.
Steady amber Module is on and booting up. No action required.
TABLE 18 Fan tray LED
LED state Status of hardware Recommended action
Off (no light) Fan tray is not powered on. No action required.
Steady green Fan tray is on and functioning properly. No action required.
Steady amber Fan tray has non-functioning fans. Replace fan tray.