Tunable parameters type
The manual page for each of the six tuning commands contains the complete list of all the parameter manipulated by each of the commands and for each parameter, its type, range, default value, and any dependencies on other parameters.
- Dynamic: if the parameter can be changed at any time
- Static: if the parameter can never be changed
- Reboot: if the parameter can only be changed during reboot
- Bosboot: if the parameter can only be changed by running bosboot and rebooting the machine
- Mount: if changes to the parameter are only effective for future file systems or directory mounts
- Incremental: if the parameter can only be incremented, except at boot time
- Connect: if changes to the parameter are only effective for future socket connections
- Deprecated: if changing this parameter is no longer supported by the current release of AIX®
For parameters of type Bosboot, whenever a change is performed, the tuning commands automatically prompt the user to ask if they want to execute the bosboot command. When specifying a restricted tunable for modification in association with the option -p or -r, you are also prompted to confirm the change. For parameters of type Connect, the tuning commands automatically restart the inetd daemon.
The tunables classified as restricted use tunables exist primarily for specialized intervention by the support or development teams and are not recommended for end user modification. For this reason, they are not displayed by default and require the force option on the command line. When modifying a restricted tunable, a warning message is displayed and confirmation required if the change is specified for reboot or permanent.