idtune(1M)                UNIX System V(Base System)                 idtune(1M)


NAME
      idtune - attempts to set value of a tunable parameter

SYNOPSIS
      /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(1).
      mtune(4), stune(4) in the Programmer's Reference Manual.







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