System tunable parameters
The AIX® Live Update operation must ensure that the tunable parameters are set on the surrogate partition similarly as they were set on the original partition. When the Live Update operation is started, it captures the currently set tunable parameters and their parameters. Therefore, these tunable parameters must not be changed during the Live Update operation if these tunable parameters are to be preserved in the surrogate partition. The tunable parameters configuration is set on the surrogate partition when the surrogate partition is started.
The AIX Runtime Expert (artex) mechanism is used to capture and set tunable parameters.