Dell PowerVault ME5 Series Storage System Deployment Guide

12 Gb/s controller module LEDs

The diagrams with tables that immediately follow provide descriptions for the different controller modules that can be installed into the rear panel of the controller enclosures.

• In each diagram, the controller module is oriented for insertion into the top slot (A) of 2U enclosures. When oriented for use in the bottom slot (B) of 2U enclosures, the controller module labels appear upside down.
• In each diagram, the controller module is oriented for insertion into either slot of 5U84 enclosures.
• Alternatively, you can configure the 2U controller enclosure with a single controller module. Install the controller module in slot A, and install a blank plate in slot B.

Table 1. Common controller module LEDs

LED	Description	Color	Status
	Hardware normal	Green	On—Controller module is functioning properly
			Flashing—Part of standby sequence as the controller module comes online
			Off—Controller module power is off, controller module is offline, or controller module has a fault condition
	Hardware fault	Amber	On—Controller module hardware fault
			Off—Controller module functioning properly
	OK to remove	White	On—Ready for removal, the cache is clear
			Off—Do not remove the controller module, cache still contains unwritten data
	Identify	Blue	On—Unit identification (UID) is active
			Off—Normal state, UID is not active
	Cache status	Green	On—Cache contains unwritten data, controller module is functioning properly
			Fast flash (1s:1s)—Cache is active, cache flush in progress
			Slow flash (3s: 1s)—Cache self-refresh in progress after cache flush
			Off—Cache is clear or system is coming online
	Ethernet management port speed	Amber	On—1000Base-T negotiated rate
			Off—10/100Base-T negotiated rate
ACT	Ethernet management port link activity	Green	On—Ethernet link is up
			Off—Ethernet link is down
	12 Gb/s SAS expansion port status	Green	On—Connected, link is up
		Green or amber	Flashing—Link activity
		Amber	On—Connected, partial link is up
		None	Off—Not connected or link is down

The following figure shows the host port LEDs on a 32Gb/s Fibre Channel controller module:

LED	Description	Color	Status
	Fibre Channel link activity	Green	On—Connected, link is up
			Flashing—Link activity
			Off—Not connected or link is down

The following figure shows the host port LEDs on a 25 GbE iSCSI controller module:

LED	Description	Color	Status
	iSCSI link activity	Green	On—Connected, link is up
			Flashing—Link activity
			Off—Not connected or link is down

The following figure shows host port LEDs on a 10Gbase-T iSCSI controller module:

LED	Description	Color	Status
	iSCSI 10Gbase-T link speed	Green	On—10GbE link speed
		Amber	On—1GbE link speed
		None	Off—Not connected or link is down
ACT	iSCSI 10Gbase-T link activity	Green	On—Connected, link is up
			Flashing—Link activity
			Off—Not connected or link is down

The following figure shows the host port LEDs on a 12 Gb/s SAS controller module:

LED	Description	Color	Status
	SAS port status	Green	On—Connected, link is up
		Green or amber	Flashing—Link activity
		Amber	On—Connected, partial link is up
		None	Off—Not connected or link is down