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A-12 SPARC Enterprise M4000/M5000 Servers Installation Guide • December 2010
During startup, the firmware toggles the front panel LEDs on and off to verify that
each one is working correctly. After that, the front panel LEDs operate as described in
TABLE A-1.
TABLE A-1 Operator Panel LEDs and Switches
Icon Name Color Description
POWER LED Green Indicates the server power status.
• On: Server has power.
• Off: Server is without power.
• Blinking: The power-off sequence is in progress.
XSCF
STANDBY
LED
Green Indicates the readiness of the XSCF.
• On: XSCF unit is functioning normally.
• Off: XSCF unit is stopped.
• Blinking: Under system initialization after NFB on, or
under system power-on process.
CHECK LED Amber Indicates that server detected a fault.
• On: Error detected that disables the startup.
• Off: Normal, or the breaker is off (power failure).
• Blinking: Indicates the position of fault.
Power switch Switch to direct server power on/power off.
Mode switch
(keyswitch)
The Locked setting:
• Normal key position. Power on is available with the
Power switch, but power off is not.
• Disables the Power switch to prevent unauthorized
users from powering the server on or off.
• The Locked position is the recommended setting for
normal day-to-day operations.
The Service setting:
• Service should be provided at this position.
• Power on and off is available with Power switch.
• The key cannot be pulled out at this position.