Qlogic SANbox 5600 Series, Installation Manual

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5 – Diagnostics/Troubleshooting
Power-On Self Test Diagnostics
59096-02 C 5-3
A
5.2
Power-On Self Test Diagnostics
The switch performs a series of tests as part of its power-up procedure. 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. 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 will show an error blink
pattern and the System Fault LED will illuminate. If there are non-critical errors,
the switch disables the failed ports and flashes the associated Logged-In LEDs.
Refer to
”Heartbeat LED Blink Patterns” on page 5-3 for more information about
Heartbeat LED blink patterns.
5.2.1
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 illuminates
continuously. Refer to
”Recovering a Switch” on page 5-12 for more information
about maintenance mode. 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:
„
2 blinks - Internal Firmware Failure Blink Pattern
„
3 blinks - System Error Blink Pattern
„
4 blinks - Configuration File System Error Blink Pattern
„
5 blinks - Over Temperature Blink Pattern