Abstract: A controller module is adapted for connecting a main board to a RAID device that includes a set of data storage media, and includes a control unit mounted on a circuit board. A first interface unit is mounted on the circuit board, and is connected electrically to the control unit. Each first ribbon cable in a set thereof has a first end coupled electrically to the first interface unit, and a second end opposite to the first end and adapted to be coupled electrically to a respective one of the data storage media of the RAID device. A second interface unit is mounted on the circuit board, is connected electrically to the control unit, and is adapted to be coupled electrically to the main board. The control unit is adapted to enable the main board to access simultaneously each of the data storage media of the RAID device.

Abstract: A gateway for a network monitoring system includes connection ports connected respectively to external and internal networks and to external and internal connection ports of a firewall. A processing unit of the gateway includes filter modules for determining whether incoming and outgoing data packets comply with rules stored in a data storage device, and bridging modules for controlling packet flow among the external and internal networks and the firewall according to data packet conditions determined by the filter modules.

Abstract: An access control method is provided for a single hard disk partitioned into a data storage area and a data backup area. In response to a write command from a host terminal, a data write address for the data storage area and associated with the write command is translated into a backup write address for the data backup area. A processor receives and stores the data write address, write data associated with the write command, and the backup write address onto a data buffer, and stores the write data associated with the write command onto the data storage area at the data write address and onto the data backup area at the backup write address. In response to a read command from the host terminal, the processor reads data corresponding to the read command from one of the data storage area and the data backup area.