LSI Nytro MegaRAID 8120-4i User's Guide download pdf (Page 15)

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LSI Nytro MegaRAID Application Acceleration Card User Guide

August 2012

Nytro MegaRAID Card Characteristics

Connectors

3.2.2 Activity LED Header (J4)

J4 is a two-pin header for connecting an LED to indicate drive activity. This activity signal is a logical combination of

the GPIO(16) and GPIO(20) pins on the LSISAS2208 device. Activity on either port causes the activity LED to turn on.

The table below shows how to connect an LED to the J4 header.

3.2.3 Heartbeat LED

The CR3 LED is mounted on the surface of the controller board. This LED is Green in color and it indicates the

LSISAS2208 device is alive. See Figure 7 for the location of the CR3 LED.

3.2.4 Life Status LED

The CR2 LED is mounted on the surface of the controller board. This LED is bicolor RED or GREEN and it indicates the

life status of the Nytro Flash modules. See Figure 7 for the location of the CR2 LED.

3.2.5 LEDs on the Backside of the board

CRB1 Orange LED = fault LED

CRB2 Blue LED = Status LED (whether off-loading or not)

CRB3 Green LED = power

3.3 Connectors

This section describes the connectors and headers on the Nytro MegaRAID card.

3.3.1 RAID Cache Protection Module Connector (J3)

J3 is for the connection for the RAID Cache Protection module. The module comes in the optional RAID Cache

Protection kit, NMR-SCM0.1 The kit comes complete including a mounting bracket. The purpose of the RAID Cache

Protection module is to protect DRAM content on power failure.

Table 4

Pin # Name Description

1 D_ACTIVE_PU Anode of LED

2 D_ACTIVE Cathode of LED

Illustration of how to connect the LED

1 2 ... 10 11 12 13 14 15 16 17 18 19 20 21 22 23

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LSI Nytro MegaRAID 8120-4i User's Guide Page 15