Specify the NOBUFFER keyword if you do not want to use a buffer area. When reading or deleting a note, the content of the note will not be read into local storage. When creating a note, the new note will be a null note. When replacing an existing note, the current content of the note is not changed. A write request creates a null note if the note does not exist. If the note does exist, the content of the note is not changed by a write request. In particular NOBUFFER preserves the content of an existing note. If you want the replace (or write) request to delete the content of an existing note, specify the BUFFER keyword with a BUFLEN value of zero.