Use the following procedure to reinitialize the file system in the sysplex without restarting any system. The procedure completely unmounts the file system; a new hierarchy is established based on the MOUNT statements in the BPXPRMxx parmlib members used by each system during initialization.
Presumably, this procedure is part of an "emergency recovery" procedure. Before reinitializing the file system, stop all z/OS® UNIX System Service applications, if possible, and tell all z/OS UNIX System Services login users to log out. Otherwise, applications and users will terminate abnormally.