Chapter 1: Introduction

The heart of the A16E-G2130-4 RAID controller subsystem is the iSCSI-to- SATA controller board. The controller comes with four (4) GbE Ethernet host ports. The subsystem connects to the host through RJ-45 connectors, while the connectors are also ready to connect to one or more network switches, enabling access to your storage volumes in complex configurations such as data-sharing or network zoning.

The docking connector at the rear of the controller board connects the controller module to the backplane board. A DDR RAM DIMM socket is strategically placed in an easily accessible location on the controller board for easy insertion of the DDR RAM DIMM module.

1.2.3Controller Module Interfaces

All external interfaces that connect to external devices are located on the controller module rear panel shown below. The interfaces are listed below.

Figure 1-7: Controller Module Interfaces – 2-port version

Host ports: Four (4) Gigabit Ethernet host ports (simulated and indicated as CH0 to CH3 in the diagram shown above) connect the EonStor subsystem to the networked iSCSI initiators through RJ-45 connectors.

COM port: The controller module comes with two (2) COM ports. The serial ports are used for local access to the firmware embedded configuration utility and the connection to a UPS device.

LED indicators: Six (6) LED indicators illustrate the system statuses for system monitoring. Please see Chapter 3 for more information.

Ejection Levers: Two (2) ejection levers located on the sides of the controller ensure that the back-end connectors are properly seated in the module slot and properly mated with the backplane.

Management LAN Port: Another 10/100BaseT Ethernet port connects the subsystem to a management computer. Available

Subsystem Components

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