20 Sun Blade T6300 Server Module Administration Guide • April 2007
Interpreting System LEDs
The behavior of LEDs on your server conforms to the American National Standards
Institute (ANSI) Status Indicator Standard (SIS). These standard LED behaviors are
described in
TABLE 2-1.
The LEDs have assigned meanings, described in
TABLE 2-2.
TABLE 2-1 LED Behavior and Meaning
LED Behavior Meaning
Off The condition represented by the color is not true.
Steady on The condition represented by the color is true.
Standby blink The system is functioning at a minimal level and ready to resume
full function.
Slow blink Transitory activity or new activity represented by the color is taking
place.
Fast blink Attention is required.
Feedback flash Activity is taking place commensurate with the flash rate (such as
disk drive activity).
TABLE 2-2 LED Behaviors With Assigned Meanings
Color Behavior Definition Description
White Off Steady state
Fast blink 4 Hz repeating
sequence, equal
intervals on
and off
This indicator helps you to locate a particular
enclosure, board, or subsystem (for example, the
Locator LED).
Blue Off Steady state
Steady on Steady state If blue is on, a service action can be performed on the
applicable component with no adverse consequences
(for example, the OK to Remove LED).
Yellow or
Amber
Off Steady state
Steady on Steady state This indicator signals the existance of a fault
condition. Service is required (for example, the Service
Required LED).
Green Off Steady state
