lpx(8) [ultrix man page]

lpx(8) System Manager's Manual lpx(8)

Name
lpx - line printer exerciser

Syntax
/usr/field/lpx [ -h ] [ -ofile ] [ -pn ] [ -tm ] -ddev

Description
The line printer exerciser outputs a rolling character pattern to the printer. Five pages are output and then the printer will pause for 15
minutes (default). Then 5 more pages are output, followed by a pause. This pattern continues until the process receives a or a kill -15
pid.

Disable the line printer queue of the printer to be tested before running Check the file to determine the line printer queue, and then run
line printer control program to disable the printer. This will stop other jobs from interfering with the testing.

Arguments
You must specify the following function flag and its argument to the exerciser:

-ddev
The line printer device name and unit number to test as listed in the directory. For example, lp, lp1.

Options
The options are:

-h Prints the help messages for the command.

-ofile
Saves the output diagnostics in file.

-pn Sets pause for n minutes. During the pause period, will only exercise the controller, saving paper. The default value for n is 15.
A value of n = 0 indicates no pause.

-tm Specifies the run time in minutes (m). The default is to run until the process receives a or kill -15 pid.

Restrictions
If there is a need to run a system exerciser over an NFS link or on a diskless system there are some restrictions. For exercisers that
need to write into a file system, such as the target file system must be writable by root. Also the directory, in which any of the exer-
cisers are executed, must be writable by root because temporary files are written into the current directory. These latter restrictions
are sometimes difficult to overcome because often NFS file systems are mounted in a way that prevents root from writing into them. Some of
the restrictions may be overcome by copying the exerciser to another directory and then executing it.

Examples
The following example causes to exercise lp1 until the process receives a or kill -15 pid.
% /usr/field/lpx -dlp1
The following example exercises lp for 120 minutes in the background.
% /usr/field/lpx -t120 -dlp &

Check Out this Related Man Page

netx(8) System Manager's Manual netx(8)

Name
netx - TCP/IP net exerciser

Syntax
/usr/field/netx [ -h ] [ -tn B ] [ -pm ] nodename

Description
The exerciser sets up a stream socket connection to the server in the TCP/IP internet domain. With connection made, the exerciser writes
random data to the server; the server loops the data back to and the data is read and verified against the data written out.

The exerciser runs in conjunction with the server.

The exerciser by default will use the port number of the echo service in the file. Make sure that the TCP echo service is enabled in the
file (no `#' in front of the service). The exerciser will run until or kill -15 pid is sent to the process. The nodename is the remote or
local system host name running the server.

Options
The netx options are:

-h Print the help message for the command.

-tn Run time in minutes (n). The default is to run until the process receives or kill -15 pid.

-pm Specify port number to use in internet domain (m < 32768). Note that this option is not used with the server, so you should
never have to use this option.

Restrictions
If there is a need to run a system exerciser over an NFS link or on a diskless system, there are some restrictions. For exercisers that
need to write into a file system, such as the target file system must be writable by root. Also the directory, in which any of the exer-
cisers are executed, must be writable by root because temporary files are written into the current directory. These latter restrictions
are sometimes difficult to overcome because often NFS file systems are mounted in a way that prevents root from writing into them. Some of
the restrictions may be overcome by copying the exerciser to another directory and then executing it.

Examples
The following example exercises the TCP/IP network from the local host to node keel until a or kill -15 pid is received:
% /usr/field/netx keel
The following example exercises the TCP/IP network from the local host to node photon for 180 minutes in the background:
% /usr/field/netx -t180 photon &

Linux and UNIX Man Pages

lpx(8) [ultrix man page]

Check Out this Related Man Page