LEDs on the rear of controllers

The rear of the DE2000/DE4000/DE6000 controller includes LEDs that indicate when the controller is active, when the controller needs attention, when there is Ethernet activity, and so on.

The following examples show the LEDs on each of the available DE2000/DE4000/DE6000 controllers with host interface cards (HICs).

Figure 1. DE2000 controller with dual-port HIC
DE2000 controller with dual-port HIC
Figure 2. DE4000 controller with quad-port HIC
DE4000 controller with quad-port HIC
Figure 3. DE6000 controller with quad-port HIC
DE6000 controller with quad-port HIC
1 Cache Active 2 Locate
3 Attention 4 Activity
5 Seven-segment display 6 HIC Host Port Link Status
7 HIC Host Port Attention 8 SAS Expansion Port Link Status
9 SAS Expansion Port Attention 10 Baseboard Host Port Link Status
11 Baseboard Host Port Attention 12 Ethernet Status
13 Ethernet Activity  
The following table describes the controller LEDs and their operational statuses:
LED Status indicator Description
Cache Active Green

The cache contains data not yet written to disk.

Off

Either the cache is inactive or all data from the cache has been preserved in non-volatile memory.

Locate Blue

There is an active request to physically locate the controller shelf.

Off

There is no active request to locate the controller shelf.

Attention Amber

The controller is faulty and requires operator attention, and the faulty component is serviceable.

Off

The controller is operating normally.

Activity Blinking green

The controller is active.

Ethernet Activity (right) Green

The link between the Management port and the device to which it is connected (such as an Ethernet switch) is up.

Off

There is no link between the controller and the connected Ethernet port.

Blinking green

There is Ethernet activity.

Ethernet Link State (left) Green

Link is established.

Off

No link is established.

SAS expansion Port Link Green

Link is established.

Off

No link is established.

SAS expansion Port Link Fault Amber

Port is degraded (one or more Phys in the port is down).

Off

Port is optimal (all Phys in the port are up or all Phys in the port are down since the LED is off if no cables are attached).

Host Port Link Status (SFP host port, FC or iSCSI) Green

The link is up (Fibre Channel).

If the LED is solid, the link is up, but there is no activity (iSCSI).

If the LED is flashing, the link is up and there is activity (iSCSI).

If the LED is off, the link is down.

Host Port Attention (SFP host port, FC or iSCSI) Amber

The port requires operator attention.