Q-Logic 5800V Manuel D’Utilisation

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4–Diagnostics/Troubleshooting
Power-On Self Test Diagnostics
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Power-On Self Test Diagnostics
The POST diagnostic program performs the following tests:
Checksum tests on the boot firmware in PROM and the switch firmware in 
flash memory
Internal data loopback test on all ports
Access and integrity test on the ASIC
During the POST, the switch logs any errors encountered. Some POST errors are 
critical, others are not. The switch uses the Heartbeat LED and the Logged-In 
LED to indicate switch and port status. A critical error disables the switch so that it 
will not operate. A non-critical error allows the switch to operate, but disables the 
ports that have errors. If two or more ports fail the POST, the entire switch is 
disabled. Whether the problem is critical or not, contact your authorized 
maintenance provider.
If there are no errors, the Heartbeat LED blinks at a steady rate of once per 
second. If a critical error occurs, the Heartbeat LED shows a blink pattern that 
indicates an error, and the System Fault LED lights up. If there are non-critical 
errors, the switch disables the failed ports and flashes the associated Logged-In 
LEDs. For more information about Heartbeat LED blink patterns, refer to 
Heartbeat LED Blink Patterns
The Heartbeat LED indicates the operational status of the switch. When the POST 
completes with no errors, the Heartbeat LED blinks at steady rate of once per 
second. When the switch is in maintenance mode, the Heartbeat LED remains lit. 
For more information about maintenance mode, refer to 
. All other blink patterns indicate critical 
errors. In addition to producing a heartbeat error blink patterns, a critical error also 
illuminates the System Fault LED.
The Heartbeat LED shows an error blink pattern for the following conditions:
1 blink—Normal operation
2 blinks—
3 blinks—
4 blinks—
5 blinks—