Skip to main content

BIOS optimization settings

Lenovo recommends the following BIOS optimization settings to be used with the Lenovo Converged HX Series appliances.

Direct cache access (DCA)

You should enable DCA mode for the processors to allow the network adapters to place data directly into the CPU cache which reduces cache misses and can improve performance.

Use the Lenovo ToolsCenter Suite CLI program or other means to enable the DCA processor option:
onecli config set Processors.DCA Enable

Operating mode

You should change the operating mode from the default mode to Custom Mode. This permits other settings to be changed such as the power performance bias.

Use the Lenovo ToolsCenter Suite CLI program or other means to set the operating mode:
onecli config set OperatingModes.ChooseOperatingMode “Custom Mode”

Power performance bias

This option allows the OS (hypervisor) to control the node power. Many customers prefer this setting as it saves on OPEX.

Use the Lenovo ToolsCenter Suite CLI program or other means to set the power performance bias to OS Controlled:
onecli config set Power.PowerPerformanceBias “OS Controlled”