Owners Manual

Table 4. RAID Controller Module Connectors And Features (continued)

Item Component Function

2 Seven segment display sequence

Displays status or error codes for the storage array.

3 Controller power LED Lights green when controller power is on.

Turns off when controller is not powered.

4 Controller fault LED Lights amber when controller fault is detected.

Turns off when controller is operating normally.

5 System identification LED Blinks blue when system identification switch push-button on

enclosure front panel is pressed.

6 Cache active or cache offload LED Lights green when on-board controller memory contains data.

If AC power fails, this LED changes to indicate Cache Offload

status. If the password reset function has successfully changed

the password, this LED flashes on and off briefly.

NOTE: The password reset switch is not available if your

system was shipped after September, 2015. The password

reset switch functionality was disabled starting from

controller firmware 08.20.09.60 and later versions.

7 Battery fault Lights amber when battery backup unit or battery has failed.

Turns off when battery backup unit is operating normally.

8 Management port Provides a 100/1000 Mbps Ethernet connection for out-of-band

management of the enclosure.

9 Ethernet port (reserved) Reserved port.

10 SAS IN port (2) Provides host-to-controller SAS connection.

11 USB port This port is a reserved port.

12 Mini USB port Provides serial connection for debugging.

13 Password reset switch Activating this switch resets the password.

NOTE: The password reset switch is not available if your

system was shipped after September, 2015. The password

reset switch functionality was disabled starting from

controller firmware 08.20.09.60 and later versions.

14 SAS OUT port (2) Provides SAS connection for cabling to an expansion enclosure.

It is recommended that you use port 0.

RAID Controller Module—Additional Features

Battery Backup Unit

Each RAID controller contains a two-cell Lithium ion nanopolymer battery backup unit (BBU). It provides power to the RAID

controller module in the event of a power outage. For information on removing and installing the BBU, see RAID Controller

Module Backup Battery Unit .

Controller Modules