Sun Microsystems 5500, Руководство по установке

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Chapter 3 Powering the System On and Off 3-13
3.3.3 Interpreting Status LED Patterns
If there is no terminal on the system, examine the front panel LEDs (
FIGURE 3-8
) for
the status of the system (
TABLE 3-2
).
FIGURE 3-8
System Status LEDs (Standalone Server)
When the self-test completes, both top and bottom LEDs should be on. If the system
runs but needs service, all three LEDs will be on. If the system cannot boot, the top
and middle LEDs will be on. In a complete failure, none of the LEDs will light.
TABLE 3-4
Front Panel LED Status Indicators
LED Position Condition
Left LED
(green) On — DC power supply is receiving AC current.
Off — There is no DC power.
Middle LED
(yellow) On Flashing — (first 60 seconds) self-tests are running.
Off — (after self-tests end) No hardware failures.
On — (after self-tests end) Hardware failure was detected.
Right LED
(green) Off — (first 60 seconds) self-tests are running.
On Flashing — (after self-tests end) System is running.
Off — (after self-tests end) System cannot run; repair is needed.
DC power
Fault
System running
Front view