IDTUNE(ADM)                          UNIX System V



     Name
          idtune - attempts to set value of a tunable parameter


     Syntax
          /etc/conf/bin/idtune  [ -f | -m ]  name  value


     Description
          This  script  attempts  to  set  the  value  of  a   tunable
          parameter.  The tunable parameter to be changed is indicated
          by name.  The desired value for  the  tunable  parameter  is
          value.

          If there is already a value for this parameter (in the stune
          file), the user will normally be asked to confirm the change
          with the following message:

          Tunable Parameter name is currently set to old_value.
          Is it OK to change it to value? (y/n)

          If the user answers y, the change will be made.   Otherwise,
          the tunable parameter will not be changed, and the following
          message will be displayed:

          name left at old_value.

          However, if the -f (force) option is used, the  change  will
          always be made and no messages will ever be given.

          If the -m (minimum) option is used and there is an  existing
          value  which  is  greater  than the desired value, no change
          will be made and no message will be given.

          If system tunable parameters are being modified as part of a
          device  driver  or application add-on package, it may not be
          desirable to prompt the user with the above  question.   The
          add-on  package  Install  script  may  chose to override the
          existing value using the -f or -m  options.   However,  care
          must be taken not to invalidate a tunable parameter modified
          earlier by the user or another add-on package.

          In order for the change in parameter  to  become  effective,
          the  UNIX  system  kernel  must  be  rebuilt  and the system
          rebooted.


     Diagnostics
          The exit status will ne non-zero if errors are encountered.


     See Also
          idbuild(ADM), mtune(F), stune(F)


     (printed 2/15/90)                                IDTUNE(ADM)