$ PEEK/SAVE_SCREEN/LOG/REOPEN /MIN_REOPEN = blocks
                                 /NOMIN_REOPEN

   Specifies the minimum number of blocks to which a terminal-
   logging file must grow before a new version of the log file is
   started, when /REOPEN is in effect.

   Use /NOMIN_REOPEN to specify that any default /MIN_REOPEN value
   should be ignored.

   The default value for /MIN_REOPEN is taken from the logical
   SAVE$MIN_REOPEN, usually defined by PEEK_DEFAULTS.COM.

   Example: $ PEEK/SAVE_SCREEN/LOG/REOPEN/MIN_REOPEN=10

   /MIN_REOPEN is ignored for reopens done as a result of
   a /TIME_OF_DAY specification.

   For more information, see the PEEK Commands SAVE_SCREEN Subtopic:
   /REOPEN