Service manual
3-10 SPARC Enterprise T1000 Server Service Manual • April 2007
3.2.1 Front and Rear Panel LEDs
Two LEDs and one LED/button are located in the upper left corner of the front
panel (
TABLE 3-2). The LEDs are also provided on the rear panel.
TABLE 3-2 Front and Rear Panel LEDs
LED Location Color Description
Locator LED/button Front and
rear panels
White Enables you to identify a particular server. Activate
the LED 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 Front and
rear panels
Yellow If on, indicates that service is required. The ALOM
CMT showfaults command will indicate any
faults causing this indicator to light.
Power OK LED Front and
rear panels
Green The LED provides the following indications:
• Off – Indicates that the system is unavailable.
Either it has no power or ALOM
CMT 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. Server diagnostics could be
running, or the system might be powering on.
Power On/Off button Front panel N/A Turns the server on and off.
Ethernet Link Activity LEDs Rear panel Green These LEDs indicate that there is activity on the
associated nets.
Ethernet Link LEDs Rear panel Yellow Indicates that the server is linked to the associated
nets.
SC Network Management
Activity LED
Rear panel Yellow Indicates that there is activity on the SC Network
Management port.
SC Network Management
Link LED
Rear panel Green Indicates that the server is linked to the SC network
management port.