the first time the system is booted after nvram is cleared, not applicable displays under performance mode setup menu on the screen. this may also occur if the service processor is replaced, or the processor mcm module is upgraded.
if option 12 is selected when not applicable is on the screen, the system responds with not applicable and redisplays the system information menu. the setup menu can be displayed after the performance mode is set, which happens the first time that the system is booted.
the default performance mode is set by the firmware during ipl. the default mode provides the best performance for the hardware configuration of the system. the performance mode is system wide; it cannot be set on a per-partition basis. the default setting can be overwritten using the performance mode setup menu. the performance mode setup menu will be similar to the following:
selecting option 1 displays the three possible performance mode:
if you want to override the default setting, a brief description of each performance mode follows:
1 large commercial system optimization is the setting for systems that do not fall under the other two selections, standard operation and turbo database mode.
2 standard operation optimizes the system for high-memory bandwidth applications where minimal sharing of data occurs, and the likelihood of significant hardware data prefetching exists. this is the default performance mode on this system.
3 turbo database mode optimizes system operation for environments where there is a large amount of data-sharing among processes running concurrently on the system.