AIX operating system and hardware tuning
When working on the configuration for your operating system and hardware, start with the operating system recommendations.
The sar command can be used as a general command to look at system statistics. You can setup the sar command to run at specific intervals to collect system statistics for a specific amount of time. You can also use the sar command to schedule sytem evaluations at specific intervals, such as every day, every week, every month, and so forth.