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 INTER­ACTIVE SDS Guide and Programmer’s Reference Manual. 

\*U  —  Version 1.0