Server Service Manual

16 Sun Fire T1000 Server Service Manual • January 2006
Front and Rear Panel LEDs
Two LEDs and one LED/button are located in the upper left corner of the front
panel (
TABLE 2-2). The LEDs are also provided on the rear panel.
TABLE 2-2 Front and Rear Panel LEDs
LED Color Description
Locator
LED
*
and
button
White Enables you to identify a particular server. The LED is controlled
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 and is indicating here I am—that it is
operational.
Service
required
LED*
Yellow If on, indicates that service is required. The ALOM showfaults
command will indicate any faults causing this indicator to light.
Power OK
LED* and
Power
On/Off
button
Green The LED provides the following indications:
• Off – The system is unavailable. Either it has no power or
ALOM is not running.
Steady on – Indicates that the system is powered on and is
running in its normal operating state. No service actions are
required.
• Standby blink – Indicates the system is running at a minimum
level in standby and is ready to be quickly returned to full
function. The service processor is running.
• Slow blink – Indicates that a normal transitory activity is taking
place. This could indicate that the system diagnostics are
running, or that the system is booting.
The Power On/Off button turns the server on and off.
There is no
Power On/Off button on the rear panel.
Ethernet
Activity
LEDs
Green These LEDs indicate that there is activity on the associated net(s).