Dot Hill Systems II 200 FC service manual 2 lists the front-panel LEDs and describes LED activity

Table 6-2lists the front-panel LEDs and describes LED activity.

Table 6-2Front-Panel LEDs

LED		LED Color	Description
Drive		Solid green	Good: Drive power-up and spin-up OK.
		Blinking green	Good: Indicates drive activity.
		Solid amber	Failed: Drive failure.
Power (Light bulb icon)		Solid green	Good: Power supply good.
Monitors the DC output voltage		Solid amber	Failed: One or more output voltages out of
within tolerance specification.
			range.
Overcurrent protection shutting
down any voltage output is also
displayed.
Voltage thresholds:
+5 VDC +/–.25 VDC
+12 VDC +/–.6 VDC
Current thresholds:
+5 VDC	35A
+12 VDC	25A
Fan (Fan icon)		Solid green	Good: Both fans are rotating at 4000 RPM or
Monitors the fan speed within			higher.
nominal operational RPM		Solid amber	Faulty/Failed: One or both fans is rotating at
specification of 5000 RPM.
			less than 4000 RPM.
Temp (Thermometer icon)		Solid green	Good: Under temperature threshold.
Monitors the temperature level
and indicates violations of the
internal temperature threshold
of 131° F (55° C).
		Solid amber	Failed: Over temperature threshold.
Event (Caution icon)
Indicates any abnormal or		Solid green	Normal operation of I/O board.
failure event in the I/O board.
		Solid amber	Failed I/O board.
		Blinking amber	Indicates that the version of the SES firmware
			or associated hardware PLD code on one
			controller does not match that on the other
			controller.

Chapter 6 Checking LEDs 6-3