Apple Network Server: Shutting Down uShare

I am attempting to unmount volumes on an Apple Network Server but get an error saying the volumes are in use. I suspect this is because uShare still has active processes. I shut down uShare using the following command:

/ushare/bin/ustop
Though the command above generally works well for shutting down uShare, it may leave a number of processes active. The following command will force uShare to kill all open processes with a timeout value set to zero:

/ushare/bin/usstop to=0 all
Published Date: Feb 18, 2012