Using the System Tuner
The System Tuner is the preferred method for changing
system tunable parameters (see
They are divided into categories you can view by clicking on the
category button at the top of the window.
To see a description of any parameter, click on the parameter.
A description appears in the text box in the window.
The System Tuner modifies ``kernel parameters'' - not
to be confused with networking parameters (which are modified using the
Kernel parameters are easy to recognize because they
are always capitalized (for example: MAXUP).
The System Tuner is
accessible from the System folder of the
launcher, or by entering scoadmin system tun on the
To change a parameter:
If the tunable parameter you want to modify is not shown in the current
set of parameters, click on the category button and select the
Once the tunable parameter you want to change is displayed, click in
the text box next to the parameter name.
A description of the parameter appears to the right.
To change the value of the tunable parameter, either enter the new value
or move the slider bar near the bottom of the window until the desired value
You can also click on auto (if available) to have the system select the
Use these buttons to control your selections:
resets values for all parameters changed since the last save
Reset to Factory
resets values to those that were set when the system was installed
discards the changes you have made
saves your settings (and proceeds to the next step)
You are prompted to rebuild the kernel to incorporate the new
tunable values: choose ``Yes'' to rebuild it now or ``No''
to rebuild it the next time you reboot.
If you rebuild the kernel, any errors encountered are
recorded in the /tmp/kernel_status file.
You are prompted to to reboot now (new parameters do not take
effect until you reboot.)
If you select ``Yes'', the system is rebooted immediately.
If ``No'', you continue with the old tunables in
effect until the next reboot.
Checking and clearing system log files
Setting colors using the .sys_mon file
© 2007 The SCO Group, Inc. All rights reserved.
SCO OpenServer Release 6.0.0 -- 05 June 2007