Dell Drac 5 User Manual

							Advanced Configuration of the DRAC 551
When you edit the /etc/grub.conf file, use the following guidelines:
1
Disable GRUBs graphical interface and use the text-based interface; 
otherwise, the GRUB screen will not be displayed in RAC console 
redirection. To disable the graphical interface, comment out the line 
starting with 
splashimage.
2To enable multiple GRUB options to start console sessions through the 
RAC serial connection, add the following line to all options:
console=ttyS1,57600
Table 4-2
 shows console=ttyS1,57600 added to only the first option.
Enabling Login to the Console After Boot
Edit the file /etc/inittab as follows:
Add a new line to configure agetty on the COM2 serial port:
co:2345:respawn:/sbin/agetty -h -L 57600 ttyS1 ansi
Table 4-3 shows a sample file with the new line.  
						

							52Advanced Configuration of the DRAC 5
Table 4-3. Sample File: /etc/innitab
#
# inittab This file describes how the INIT process 
should set up
# the system in a certain run-level.
#
# Author: Miquel van Smoorenburg 
# Modified for RHS Linux by Marc Ewing and 
Donnie Barnes
#
# Default runlevel. The runlevels used by RHS are:
# 0 - halt (Do NOT set initdefault to this)
# 1 - Single user mode
# 2 - Multiuser, without NFS (The same as 3, if you 
do not have
# networking)
# 3 - Full multiuser mode
# 4 - unused
# 5 - X11
# 6 - reboot (Do NOT set initdefault to this)
#
id:3:initdefault:
# System initialization.
si::sysinit:/etc/rc.d/rc.sysinit
l0:0:wait:/etc/rc.d/rc 0
l1:1:wait:/etc/rc.d/rc 1
l2:2:wait:/etc/rc.d/rc 2
l3:3:wait:/etc/rc.d/rc 3
l4:4:wait:/etc/rc.d/rc 4
l5:5:wait:/etc/rc.d/rc 5
l6:6:wait:/etc/rc.d/rc 6 
						

							Advanced Configuration of the DRAC 553
Edit the file /etc/securetty as follows:
Add a new line with the name of the serial tty for COM2:
ttyS1 # Things to run in every runlevel.
ud::once:/sbin/update
# Trap CTRL-ALT-DELETE
ca::ctrlaltdel:/sbin/shutdown -t3 -r now
# When our UPS tells us power has failed, assume we 
have a few
# minutes of power left. Schedule a shutdown for 2 
minutes from now.
# This does, of course, assume you have power 
installed and your
# UPS is connected and working correctly. 
pf::powerfail:/sbin/shutdown -f -h +2 Power Failure; 
System Shutting Down
# If power was restored before the shutdown kicked 
in, cancel it.
pr:12345:powerokwait:/sbin/shutdown -c Power 
Restored; Shutdown Cancelled
# Run gettys in standard runlevels
co:2345:respawn:/sbin/agetty -h -L 57600 ttyS1 ansi
1:2345:respawn:/sbin/mingetty tty1
2:2345:respawn:/sbin/mingetty tty2
3:2345:respawn:/sbin/mingetty tty3
4:2345:respawn:/sbin/mingetty tty4
5:2345:respawn:/sbin/mingetty tty5
6:2345:respawn:/sbin/mingetty tty6
# Run xdm in runlevel 5
# xdm is now a separate service
x:5:respawn:/etc/X11/prefdm -nodaemon
Table 4-3. Sample File: /etc/innitab (continued) 
						

							54Advanced Configuration of the DRAC 5
Table 4-4 shows a sample file with the new line.
Enabling the DRAC 5 Serial/Telnet/SSH Console
The serial/telnet/ssh console can be enabled locally or remotely.
Enabling the Serial/Telnet/SSH Console Locally
 NOTE: You (the current user) must have Configure DRAC 5 permission in order to 
perform the steps in this section.
To enable the serial/telnet/ssh console from the managed system, type the 
following local RACADM commands from a command prompt:
racadm config -g cfgSerial -o cfgSerialConsoleEnable 1
racadm config -g cfgSerial -o cfgSerialTelnetEnable 1
racadm config -g cfgSerial -o cfgSerialSshEnable 1
Table 4-4. Sample File: /etc/securetty
vc/1
vc/2
vc/3
vc/4
vc/5
vc/6
vc/7
vc/8
vc/9
vc/10
vc/11
tty1
tty2
tty3
tty4
tty5
tty6
tty7
tty8
tty9
tty10
tty11
ttyS1 
						

							Advanced Configuration of the DRAC 555
Enabling the Serial/Telnet/SSH Console Remotely
To enable the serial/telnet/ssh console remotely, type the following remote 
RACADM commands from a command prompt:
racadm -u  -p  -r  config -g cfgSerial -o cfgSerialConsoleEnable 1
racadm -u  -p  -r  config -g cfgSerial -o cfgSerialTelnetEnable 1
racadm -u  -p  -r  config -g cfgSerial -o cfgSerialSshEnable 1
 NOTE: When you use Internet Explorer version 6 SP2 or version 7 to log into a 
managed system on a private network, but without access to the Internet, you may 
experience a delay of up to 30 seconds while using remote RACADM commands.
Using the RACADM Command to Configure the Settings for the Serial 
and Telnet Console
This subsection provides steps to configure the default configuration settings 
for serial/telnet/ssh console redirection. 
To configure the settings, type the RACADM config command with the 
appropriate group, property, and property value(s) for the setting that you 
want to configure. 
You can type RACADM commands locally or remotely. When using 
RACADM commands remotely, you must include the user name, password, 
and managed system DRAC 5 IP address. 
Using RACADM Locally
To type RACADM commands locally, type the following command from a 
command prompt on the managed system:
racadm config -g <
group> -o  
To view a list of properties, type the following command from a command 
prompt on the managed system:
racadm getconfig -g 
 
						

							56Advanced Configuration of the DRAC 5
Using RACADM Remotely
To use RACADM commands remotely, type the following command from a 
command prompt on a management station:
racadm -u <
username> -p  -r  config -g  -o  
Ensure that your web server is configured with a DRAC 5 card before you use 
RACADM remotely. Otherwise, RACADM times out and the following 
message appears: 
Unable to connect to RAC at specified IP address.
To enable your web server using Secure Shell (SSH), telnet or local RACADM, 
type the following command from a command prompt on a management station:
racadm config -g cfgRacTuning -o 
cfgRacTuneWebServerEnable 1
Displaying Configuration Settings
Table 4-5 provides the actions and related commands to display your 
configuration settings. To run the commands, open a command prompt on 
the managed system, type the command, and press .
Table 4-5. Displaying Configuration Settings
Action Command
List the 
available 
groups.racadm getconfig -h
Display the 
current settings 
for a particular 
group.racadm getconfig -g 

For example, to display a list of all cfgSerial group settings, type 
the following command:
racadm getconfig -g cfgSerial
Display the 
current settings 
for a particular 
group remotely.racadm -u 
 -p  -r 
 getconfig -g cfgSerial
For example, to display a list of all of the settings for the 
cfgSerial group remotely, type:
racadm -u root -p calvin -r 192.168.0.1 
getconfig -g cfgSerial 
						

							Advanced Configuration of the DRAC 557
Configuring the Telnet Port Number
Type the following command to change the telnet port number on the DRAC 5.
racadm config -g cfgRacTuning -o cfgRacTuneTelnetPort 

Using a Serial or Telnet Console
You can run the serial commands in Table 4-19 remotely using RACADM or 
from the serial/telnet/ssh console command prompt. 
Logging in to the DRAC 5
After you have configured your management station terminal emulator software 
and managed node BIOS, perform the following steps to log into the DRAC 5:
1
Connect to the DRAC 5 using your management station terminal 
emulation software.
2Type your DRAC 5 user name and press .
You are logged into the DRAC 5.
Starting a Text Console
After you have logged into the DRAC 5 through your management station 
terminal software with telnet or SSH, you can redirect the managed system 
text console by using connect com2, which is a telnet/SSH command. Only 
one connect com2 client is supported at a time. 
To connect to the managed system text console, open a DRAC 5 command 
prompt (displayed through a telnet or SSH session) and type:
connect com2
From a serial session, you can connect to the managed system’s serial console 
by pressing , which connects the managed system’s 
serial port directly to the servers’ COM2 port and bypasses the DRAC 5. 
To reconnect the DRAC 5 to the serial port, press . 
The managed node COM2 port and the DRAC 5 serial port baud rates must 
be identical.
The connect -h com2 command displays the contents of the serial 
history buffer before waiting for input from the keyboard or new characters 
from the serial port. 
						

							58Advanced Configuration of the DRAC 5
 NOTE: When using the -h option, the client and server terminal emulation type 
(ANSI or VT100) must be identical; otherwise, the output may be garbled. 
Additionally, set the client terminal row to 25.
The default (and maximum) size of the history buffer is 8192 characters. 
You can set this number to a smaller value using the command:
racadm config -g cfgSerial -o cfgSerialHistorySize 

Configuring Serial and Terminal Modes
Configuring IPMI and RAC Serial
1Expand the System tree and click Remote Access.
2Click the Configuration tab and then click Serial.
3Configure the IPMI serial settings.
See Table 4-6 for description of the IPMI serial settings. 
4Configure the RAC serial settings.
See Table 4-7 for description of the RAC serial settings.
5Click Apply Changes.
6Click the appropriate Serial Configuration page button to continue. See 
Table 4-8 for description of the serial configuration page settings.
Table 4-6. IPMI Serial Settings
Setting Description
Connection Mode 
Setting
 Direct Connect Basic Mode - IPMI Serial Basic Mode
 Direct Connect Terminal Mode - IPMI Serial Terminal 
Mode
Baud RateSets the data speed rate. Select 9600 bps, 19.2 kbps, 
57.6 kbps, or 115.2 kbps.
Flow Control
 None — Hardware Flow Control Off
 RTS/CTS — Hardware Flow Control On 
						

							Advanced Configuration of the DRAC 559
Channel Privilege 
Level Limit Administrator


Table 4-7. RAC Serial Settings
Setting Description
EnabledEnables or disables the RAC serial console. Checked=
Enabled; Unchecked=Disabled
Maximum SessionsThe maximum number of simultaneous sessions allowed 
for this system.
TimeoutThe maximum number of seconds of line idle time before 
the line is disconnected. The range is 60 to 1920 seconds. 
Default is 300 seconds. Use 0 seconds to disable the 
Timeout feature.
Redirect EnabledEnables or disables Console Redirection. Checked=
Enabled; Unchecked=Disabled
Baud RateThe data speed on the external serial port. Values are 9600 
bps, 28.8 kbps, 57.6 kbps, and 115.2 kbps. Default is 
57.6 kbps.
Escape KeySpecifies the  key. The default are the ^ 
characters.
History Buffer SizeThe size of the serial history buffer, which holds the last 
characters written to the console. The maximum and 
default = 8192 characters.
Login CommandThe DRAC command line to be executed upon valid 
login. Table 4-6. IPMI Serial Settings (continued)
Setting Description 
						

							60Advanced Configuration of the DRAC 5
Configuring Terminal Mode
1Expand the System tree and click Remote Access.
2Click the Configuration tab and then click Serial.
3In the Serial Configuration page, click Terminal Mode Settings.
4Configure the terminal mode settings.
See Table 4-9 for description of the terminal mode settings. 
5Click Apply Changes.
6Click the appropriate Terminal Mode Settings page button to continue. 
See Table 4-10 for description of the terminal mode settings page buttons.
Table 4-8. Serial Configuration Page Settings
Button Description
PrintPrint the Serial Configuration page.
RefreshRefresh the Serial Configuration page.
Apply ChangesApply the IPMI and RAC serial changes.
Terminal Mode SettingsOpens the Terminal Mode Settings page.
Table 4-9. Terminal Mode Settings
Setting Description
Line EditingEnables or disables line editing.
Delete ControlSelect one of the following:
BMC outputs a  character when 
 or  is received
 — 

BMC outputs a  character when  or 
 is received
 — 
Echo ControlEnables or disables echo.
Handshaking ControlEnables or disables handshaking.
New Line SequenceSelect None, , , , , 
or .
Input New Line 
SequenceSelect  or .