USB Device Connection
96-30065-001 Rev. A0
DataDirect Networks EF4024 FC RAID System Setup Guide | 65
Setting Parameters for Device Driver
1.
Enter the following command:
modprobe usbserial vendor=0x210c product=0xa4a7 use_acm=1
2.
Press Enter to execute the command.
The Linux device driver is loaded with the parameters required to recognize the
controllers.
NOTE:
Optionally, this information can be incorporated into the /etc/modules.conf
file.
D.3
Known Issues on Windows
When using the CLI port and cable for setting network port IP addresses, be aware of the
following known issues on Microsoft Windows platforms.
Problem
On Windows operating systems, the USB CLI port may encounter issues preventing the
terminal emulator from reconnecting to storage after the Management Controller (MC)
restarts or the USB cable is unplugged and reconnected.
Workaround
Follow these steps when using the mini-USB cable and USB Type B CLI port to communicate
out-of-band between the host and controller module for setting network port IP addresses.
To create a new connection or open an existing connection (HyperTerminal):
1.
From the Windows Control Panel, select Device Manager.
2.
Connect using the USB COM port and Detect Carrier Loss option.
a) Select Connect To > Connect using: Then select a COM port from the list.
b) Select the Detect Carrier Loss check box.
The Device Manager page should show “Ports (COM & LPT)” with an entry entitled
“Disk Array USB Port (COM
n
)”—where
n
is your system’s COM port number.
3.
Set network port IP addresses using the CLUI (see Section
3.5.2
).
To restore a hung connection when the MC is restarted (any supported terminal emulator):
1.
If the connection hangs, disconnect and quit the terminal emulator program.
a) Using Device Manager, locate the COM
n
port assigned to the Disk Array Port.
b) Right-click on the hung Disk Array USB Port (COMn), and select Disable.
c) Wait for the port to disable.
2.
Right-click on the previously hung—now disabled—Disk Array USB Port (COM
n
), and
select Enable.
3.
Start the terminal emulator and connect to the COM port.
4.
Set network port IP addresses using the CLUI (see Section
3.5.2
).
