1 - /AFTER

       /AFTER={time}
       /AFTER={current_time} (default)
       /NOAFTER

          The /AFTER qualifier keeps the script from executing
          until after the specified time.

          You can specify time as either an absolute time or
          as a combination of absolute and delta times. For
          complete information on specifying time values, see
          the OpenVMS User's Manual.

          The /AFTER qualifier has three states. It can be
          specified with a valid time, it can be omitted from
          the command line, or it can be negated (/NOAFTER). If
          /AFTER is specified with a valid time, the script is
          scheduled to execute after that time. If the /AFTER
          qualifier is omitted, the defragmentation software
          processes the command as if the /AFTER qualifier
          were specified with the current time. If /NOAFTER
          is specified, no starting time is associated with
          the script being defined. The /NOAFTER qualifier
          allows you to define a script without scheduling it
          to execute. To subsequently start the script, use the
          START subcommand.

2 - /EPILOGUE

       /EPILOGUE={file-name}
       /NOEPILOGUE (default)

          The /EPILOGUE qualifier identifies a DCL command file
          which DFO executes upon completion of the DEFRAGMENT
          operation.

          Mounting or dismounting the disks cannot be done
          through the Command file specified.

3 - /INTERVAL

       /INTERVAL={delta-time}
       /NOINTERVAL (default)

          The /INTERVAL qualifier executes a script at
          regularly scheduled intervals. The /INTERVAL
          qualifier specifies the minimum time between two
          consecutive executions of a script.

          Specify time as a delta time. Refer to the OpenVMS
          User's Manual for more information on specifying
          times. If you do not specify a time with the
          /INTERVAL qualifier, a default value of 1 day is
          used. This value causes the associated script to run
          every 24 hours.

          If you specify the /AFTER qualifier with the
          /INTERVAL qualifier, the first defragmentation
          operation occurs at or after the time specified
          by the /AFTER qualifier; all subsequent operations
          execute at intervals set according to the /INTERVAL
          qualifier.

4 - /LOG

       /LOG={file-spec}
       /NOLOG (default)

          The /LOG qualifier causes the defragmentation
          process to create a file containing a list of all
          its operations.

5 - /MAIL_NOTIFICATION

       /MAIL_NOTIFICATION
       /NOMAIL_NOTIFICATION (default)

          The /MAIL_NOTIFICATION qualifier requests that
          brief status and termination messages regarding
          defragmentation processes be mailed to the mail
          distribution list provided in the file DFG$MAIL_
          ADDRESS.

6 - /NODE

       /NODE=(node-name[,...])
       /NONODE (default)

          The /NODE qualifier limits the scope of the
          DEFRAGMENT command to the node or set of nodes
          specified by /NODE=(node-name). By default,
          defragmentation processes may execute on any LMF
          licensed node in the system.

7 - /OPCOM_NOTIFICATION

       /OPCOM_NOTIFICATION (default)
       /NOOPCOM_NOTIFICATION

          The /OPCOM_NOTIFICATION qualifier requests that
          brief status and termination messages regarding
          defragmentation processes be sent to OPCOM.

8 - /PROLOGUE

       /PROLOGUE={file-name}
       /NOPROLOGUE (default)

          The /PROLOGUE qualifier identifies a DCL command
          file which DFO executes just before the Defragment
          operation starts.

          Mounting or dismounting the disks cannot be done
          through the Command file specified.

9 - /SCRIPT

       /SCRIPT={script-name}
       /NOSCRIPT (default)

          The /SCRIPT qualifier assigns a user-supplied name
          to a script. If a duplicate script-name is selected,
          defragmentation software issues a duplicate script
          name error message and does not enter the new script
          into the database-no defragmentation takes place.

          A script name may be up to 64 characters in length
          and may contain any of the following characters:

          o  Any alphanumeric character

          o  Underscore ( _ )

          o  Hyphen ( - )

          o  Dollar sign ( $ )

          Observe the following rules when naming a script:

          o  You may use any combination of uppercase and
             lowercase letters.

          o  You cannot begin script names using the dollar
             sign, but you can include the dollar sign within
             the script name. (The dollar sign is reserved for
             special use by HP.)

          o  You should not end a script name with a hyphen,
             since the hyphen is the DCL continuation
             character.