IBM pSeries 630 6C4 Service Manual page 404

Selecting option 1 displays the following performance modes:
Select from the following options:
1. Large Commercial System optimization
2. Standard Operation
3. Turbo Database Mode
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Notes:
1. Some processor card changes cause the default performance mode to change. This new setting is
not reflected in the menu until after the system is rebooted with the new configuration.
2. If the NVRAM has been cleared, the default performance mode and the current performance mode
will indicate uninitialized.
If you want to override the default setting, a brief description of each performance mode follows:
Large Commercial System Optimization
Is the setting for systems that do not fall into the other two categories, standard operation and
turbo database mode. This setting provides the optimum performance for most applications.
Standard Operation
Optimizes the system for large memory bandwidth applications where minimal sharing of data
occurs and the likelihood of significant hardware data-prefetching exists.
Turbo Database Mode
Optimizes system operation for environments where there is a large amount of data sharing
among processes running concurrently on the system.
v L3 Mode Menu
This function is not applicable to this system.
v Remote I/O (RIO) Link Speed Set Up Menu
This option is used to change the speed of the RIO interface to external drawers. On this system,
setting this speed will have no effect on the system.
The hardware capability is detected and set by the system firmware during the boot process. If the
hardware capability is uninitialized (after NVRAM is cleared), it will be set during the first boot and
remain set during subsequent boots.
The maximum RIO speed setting will remain uninitialized until set by the user.
The user can set the speed lower than or equal to the hardware capability, but not higher. If the
hardware capability is 1000 Mbps, the user can set the link speed to 500 Mbps, and the RIO link will
run at 500 Mbps. However, if the hardware capability is 500 Mbps and the user selects 1000 Mbps, the
user's selection will be ignored by the system.
384 Eserver pSeries 630 Model 6C4 and Model 6E4 Service Guide