Users Guide

Table Of Contents
There are up to six IOMs on the managed system. To connect to an IOM:
connect switch-n
where n is an IOM label A1, A2, B1, B2, C1, and C2.
(See Figure 13-1 for an illustration of the placement of IOMs in the chassis.) When you reference the IOMs in the connect
command, the IOMs are mapped to switches as shown in the following table.
Table 35. : Mapping I/O Modules to Switches
I/O Module Label Switch
A1 switch-a1 or switch- 1
A2 switch-a2 or switch-2
B1 switch-b1 or switch-3
B2 switch-b2 or switch-4
C1 switch-c1 or switch-5
C2 switch-c2 or switch-6
NOTE: There can only be one IOM connection per chassis at a time.
NOTE: You cannot connect to pass-throughs from the serial console.
To connect to a managed server serial console, use the command connect server-<n><x>, where n is 1-8 and x is a,b, c,
or d. You can also use the racadm connect server-n command. When you connect to a server using the -b option, binary
communication is assumed and the escape character is disabled. If the iDRAC is not available, you see a No route to host
error message.
The connect server-n command enables the user to access the server's serial port. After this connection is established,
the user can view the server's console redirection through CMC's serial port that includes both the BIOS serial console and the
operating system serial console.
NOTE:
To view the BIOS boot screens, serial redirection has to be enabled in the servers BIOS Setup. Also, you must set
the terminal emulator window to 80x25. Otherwise, the screen is garbled.
NOTE: Not all keys work in the BIOS setup screens, so provide appropriate escape sequences for CTRL+ALT+DEL, and
other escape sequences. The initial redirection screen displays the necessary escape sequences.
Related tasks
Configuring the Managed Server BIOS for Serial Console Redirection on page 157
Configuring Windows for Serial Console Redirection on page 158
Configuring Linux for Server Serial Console Redirection During Boot on page 158
Configuring Linux for Server Serial Console Redirection After Boot on page 159
Configuring the Managed Server BIOS for Serial Console
Redirection
It is necessary to connect to the managed server using the iKVM (see Managing Servers With iKVM ) or establish a Remote
Console session from the iDRAC Web interface (see the iDRAC Users Guide on dell.com/support/manuals).
Serial communication in the BIOS is OFF by default. To redirect host text console data to Serial over LAN, you must enable
console redirection through COM1. To change the BIOS setting:
1. Boot the managed server.
2. Press <F2> to enter the BIOS setup utility during POST.
3. Scroll down to Serial Communication and press <Enter> . In the pop-up dialog box, the serial communication list displays
these options:
Off
Configuring CMC to Use Command Line Consoles
157