8SPARC Enterprise T5440 Server Service Manual • June 2011
Rear Panel LEDs
Related Information
■“Rear Panel Diagram” on page6
■“Ethernet Port LEDs” on page 9
■“Detecting Faults Using LEDs” on page34
LED Icon Description
Locator LED
and button
(white)
The Locator LED enables you to find a particular system. The LED is
activated using one of the following methods:
• The ALOM CMT command setlocator on.
• The ILOM command set /SYS/LOCATE value=Fast_Blink
• Manually press the Locator button to toggle the Locator LED on or off.
This LED provides the following indications:
• Off – Normal operating state.
• Fast blink – System received a signal as a result of one of the methods
previously mentioned, indicating that it is active.
Service
Required LED
(amber)
If on, indicates that service is required. POST and ILOM are two diagnostics
tools that can detect a fault or failure resulting in this indication.
The ILOM show faulty command provides details about any faults that
cause this indicator to light.
Under some fault conditions, individual component fault LEDs are lit in
addition to the system Service Required LED.
Power OK LED
(green)
Provides the following indications:
• Off – Indicates that the system is not running in its normal state. Sy stem
power might be off. The service processor might be running.
• Steady on – Indicates that the system is powered on and is running in its
normal operating state. No service actions are required.
• Fast 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. Slow
blinking could indicate the system diagnostics are running, or that the
system is booting.