Usage: BREAK PLEX= NOERR Removes the plex from the currently selected LUN. PLEX= Specifies the index of the plex to remove. ...

Usage:  BREAK PLEX= [NOERR]      Removes the plex from the currently selected LUN.      PLEX=    Specifies the index of the plex to remove. This plex will not                 be retained, and the drive extents used by this plex will be                 reclaimed.      NOERR       For scripting only. When an error is encountered, DiskRAID                 continues to process commands as if the error did not occur.                 Without the NOERR parameter, an error causes DiskRAID to exit                 with an error code.      A mirrored LUN must be selected for this operation to succeed.  Example:      BREAK PLEX=1