Dot Hill Systems II 200 FC service manual Power Supply and Fan Module LEDs

The I/O expansion module LEDs and their color definitions are shown in Table 6-5.

Table 6-5I/O Expansion Module LEDs

LED	Purpose	LED Color Definition
Activity	I/O activity of host	Off – Not busy (no I/O activity)
	and disk ports	Blinking green – Busy (active I/O)
I/O module	Status of I/O	Solid green – Power-up successful and SES
	module	chip has successfully read on-board
		temperature and voltage sensors
		Amber – Expansion unit powering up, or
		failed voltage or temperature sensor
		Off - Expansion unit is not powered up
SFP link (L)	SFP link status	Solid green – Active good FC Connection
		Off – Empty or failed FC connection
SFP speed (S)	SFP speed status	Solid green – 2 Gbit
		Off – 1 Gbit

Note – An SFP link status (L) LED is off if there is no connection or a failed connection to this SFP.

6.3.3Power Supply and Fan Module LEDs

Table 6-6Power Supply LEDs

Purpose		LED	LED Color Definition
Monitors the DC output voltage		Solid green	Power supply and fans are
within tolerance specification.			good.
Overcurrent protection shutting down		Solid amber	Failed: One or more output
any voltage output is also displayed.
Voltage thresholds:			voltages out of range or one
+5 VDC +/–.25 VDC			or both fans is rotating at less
+12 VDC +/–.6 VDC			than 4000 RPM.
Current thresholds:
+5 VDC	35A
+12 VDC	25A

The following figure shows the AC power supply and fan module.

Chapter 6 Checking LEDs 6-9