3.4 Telnet Connection 3.5 Secure Link over SSH 3.6 Command-Line Interface
3.1 RS-232C Serial Port
Infortrend’s controllers and subsystems can be configured via a PC running a VT-100 terminal emulation program, or a VT-100-compatible terminal. RAID enclosures usually provide one or more DB-9 or audio jack RS-232C ports. Simply use an RS-232C cable to connect between the subsystem/controller’s RS-232C port and the PC serial (COM) port.
Make sure you use the included null modem (IFT-9011) to convert the serial port signals. A null modem is always provided with your RAID subsystem/controller. The null modem has the serial signals swapped for connecting to a standard PC serial interface.
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The following are guidelines on using the serial port:
• The serial port’s default is set at 38400 baud, 8 bit, 1 stop bit and no parity. Use the COM1 serial port of the controller for terminal management session.
• In most cases, connecting RD, TD, and SG is enough to establish communication with a terminal.
• If you are using a PC as a terminal, any VT-100 terminal emulation software will suffice. Microsoft® Windows includes a terminal emulation program as presented with the “(Hyper) Terminal” icon in the Accessories window.
• For other details on connecting to the serial port, please refer to the Installation and Hardware Reference Manual that came with your subsystem.
3.1.1 Configuring RS-232C Connection via LCD Keypad Panel
The subsystem’s baud rate default is set to 38400. If necessary, follow the steps below to change the baud rate using the front panel keypad:
Press ENT for two seconds to enter the Main Menu. Press the up or down arrow keys to select "View and Edit Configuration ..", then press ENT.
Select "Communication Parameters ..", then press ENT.
Select "RS-232 Configuration ..", then press ENT.
Select "COM1 Configuration ..", then press ENT.
Select "Baud-rate XXXXX..", then press ENT.
The baud rate default is 38400. If another baud rate is preferred, press the up or down arrow keys to select the baud rate, then press ENT for 2 seconds to confirm the selected baud rate. Set the identical baud rate to your RAID array and your terminal computer.
• The following baud rates are available: 2400, 4800, 9600, 19200, and 38400.
• Terminal connection should work properly using the above setting. You may check the following option in your COM port configuration if you encounter problems:
“Term Emul. Enab ..”: Make sure the terminal function has not been accidentally disabled.
3.1.2 Starting RS-232C Terminal Emulation
The keys used when operating via the terminal are as follows:
← → ↑ ↓ To select options
[Enter] To go to a submenu or to execute a selected option
[Esc] To cancel an option or return to the previous menu
[Ctrl]+[L] To refresh the screen information
Figure 3 - 1: RS232C Initial Screen
Baud-rate 38400 Change to 19200?
NOTE:
If the RS-232C cable is connected while the controller is powered on, press [Ctrl] + [L] to refresh the screen information. Key combinations may vary depending on the terminal software you use.
The initial screen appears when the controller finishes its self-test and is properly initialized. Use ↑ ↓ arrow keys to select terminal emulation mode, then press [ENTER] to enter the Main Menu.
Figure 3 - 2: Functional Item Page
Choose a functional item from the main menu to begin configuring your RAID.
3.2 Communication Parameters
The Communication Parameters is the first functional sub-menu you access once the physical RS-232C link is connected. In addition to the baud rate and terminal emulation options which have been discussed in section 3.1, the sub-menu contains several other options to prepare your management session using the Ethernet connection.
To access the sub-menu, use your arrow keys to select “View and Edit Configuration Parameters,” and press Enter on
“Communication Parameters.” This provides menu accesses to
“RS-232 Port Configuration” and “Internet Protocol <TCP/IP>.”
Figure 3 - 3: Configuration Parameters Page
3.2.1 RS-232 Port Configuration
The “RS-232 Port Configuration” provides access to change the COM port operating parameters. Each COM port (COM1 or COM2) selection menu features two communication parameters: “Baud Rate” and “Terminal Emulation.”
Figure 3 - 4: RS-232 Port Configuration Page
NOTE:
COM2 is mostly used for UPS connection on the EonStor subsystems.
Unlike previous models, the COM2 port on the EonStor can no longer be used for management access.
3.2.2 Terminal Emulation:
The Terminal Emulation setting on the COM1 port is enabled by default. Usually there is no need to change this setting.
3.2.3 Baud Rate
To change the Baud Rate setting, select the highlighted menu item by pressing Enter. Available options will be displayed in a pull-down menu. Select by pressing Enter and press ESC several times to return to the previous configuration screen.
Figure 3 - 5: Baud Rate Setting Page
3.2.4 Internet Protocol <TCP/IP>
The Internet Protocol menu allows you to prepare the management access through the subsystem/controller’s RJ-45 Ethernet port.
Figure 3 - 6: Internet Protocol Page
To access the configuration options, press Enter on “Internet Protocol <TCP/IP>” to display the information of Ethernet port.
Press [ENTER] on the chip information to display the “View Statistics” and the “Set IP Address” options.
3.2.5 View Statistics
Figure 3 - 7: View Statistics Page
This window displays the current Ethernet link status.
3.2.6 Set IP Address
Figure 3 - 8: Internet Protocol Page
Provide a valid IP address for your subsystem/controller’s Ethernet port. Consult your network administrator for an IP address and the associated NetMask and Gateway values.
You may also key in “DHCP” if your local network supports automatic IP configuration.
NOTE:
One drawback of using DHCP is that if cable disconnection or other unpredictable network faults occur, your Ethernet port may be assigned with a different IP. This may cause problems for the management sessions using the RAIDWatch manager. You may not be able to receive important event messages. RAIDWatch and its sub-module, the Configuration Client (the event notification utility), recognize a configured array through its Ethernet port IP.