Sun Microsystems Netra T5220 - Page 21

Chapter 1 Server Diagnostics 1-11
TABLE 1-2 lists and describes the front and rear panel LEDs.
TABLE 1-2 Front and Rear Panel LEDs
LED Location Color Description
Locator LED
and Button
Front upper
left and rear
center
White Enables you to identify a particular server. The LED is activated
using one of the following methods:
• Issuing the setlocator on or off command.
• Pressing the button to toggle the indicator on or off.
This LED provides the following indications:
• Off – Normal operating state.
• Fast blink – The server received a signal as a result of one of the
preceding methods.
Fault LED Front upper
left and rear
center
Amber If on, indicates that service is required. The ALOM CMT CLI
showfaults command provides details about any faults that cause
this indicator to be lit.
Activity LED Front upper
left
Green • On – Drives are receiving power. Solidly lit if drive is idle.
• Flashing – Drives are processing a command.
• Off – Power is off.
Power Button Front upper
left
Turns the host system on and off. This button is recessed to prevent
accidental server power-off. Use the tip of a pen to operate this
button.
Alarm:Critical
LED
Front left Red Indicates a critical alarm. Refer to the server administration guide
for a description of alarm states.
Alarm:Major
LED
Front left Red Indicates a major alarm.
Alarm:Minor
LED
Front left Amber Indicates a minor alarm.
Alarm :User
LED
Front left Amber Indicates a user alarm.
Power OK LED Rear center Green The LED provides the following indications:
• Off – The system is unavailable. Either the system has no power
or ILOM is not running.
• Steady on – Indicates that the system is powered on and is
running it its normal operating state.
• Standby blink – Indicates that the service processor is running
while the system is running at a minimum level in Standby
mode, and is ready to be returned to its normal operating state.
• Slow blink – Indicates that a normal transitory activity is taking
place. The system diagnostics might be running, or that the
system might be booting.