Dynamic System Configuration

In an effort to simplify system tuning, Digital UNIX Version 4.0 allows you to change certain kernel attributes without having to edit the the system configuration file or the file param.c, and without having to rebuild and reboot a target kernel for the changes to take affect. Through the use of attribute tables, each kernel subsystem−−whether a Digital UNIX kernel subsystem or one developed by a third-party vendor−−can define kernel attributes that can be changed at run-time by using the /sbin/sysconfig command with the -r option (if the kernel attribute supports run-time reconfiguration), or at boot-time by adding or modifying entries in the kernel attribute database, /etc/sysconfigtab and rebooting.

For more information, see the System Administration guide; and the System Tuning and Performance Management guide.