Chapter 1 Introduction
switches, enabling access to your storage volumes in complex configurations such as
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.
1.2.3 Controller 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 SecurStor 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
Management LAN Port: Another 10/100BaseT Ethernet port connects the subsystem to a management computer. Available management interfaces include: telnet,
Restore Default LED and button: The push button and LED are used to restore firmware defaults in cases when upgrading