The multipathd -k command is an interactive interface to the multipathd daemon. Entering this command brings up an interactive multipath console. After entering this command, you can enter help to get a list of available commands, you can enter a interactive command, or you can enter CTRL-D to quit.
The multipathd interactive console can be used to troubleshoot problems you may be having with your system. For example, the following command sequence displays the multipath configuration, including the defaults, before exiting the console.
# multipathd -k> > show config> > CTRL-D
The following command sequence ensures that multipath has picked up any changes to the
# multipathd -k> > reconfigure> > CTRL-D
Use the following command sequence to ensure that the path checker is working properly.
# multipathd -k> > show paths> > CTRL-D