Sun Microsystems 4000, 5000 Interpreting Status LED Patterns, Summarizes LED status indications

3

Note – When the system finishes booting for the first time — if there is no appropriate server configuration file on the disk drive — it may be necessary to prevent the JumpStart automatic configuration program from running. See the caution in Section 3.1, “Using JumpStart Automatic Installation.”

3.2.3 Interpreting Status LED Patterns

If there is no terminal on the system, basic system status information is available on the front panel LEDs, as shown in Figure 3-5.

DC power (green)

Fault (yellow)

System running (green)

Figure 3-5System Status LEDs (Cabinet Server)

Table 3-1 summarizes LED status indications.

Table 3-1Front 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	On Flashing — (first 60 seconds) Self tests are running.
(yellow)	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.

3-8 Ultra Enterprise 6000/5000/4000 Systems Installation Guide—November 1996