Power Regulator For Proliant - HP Integrated Lights-Out User Manual

Press and Hold—This option presses and holds the power button for six seconds, which is useful in
forcing the system to power off if the operating system is not responding to the momentary press.
This feature will not gracefully shut down the operating system.
Cold Boot of system—This option turns the server off, then back on. To reboot the system, select Cold
Boot of system and then click Virtual Power. This action immediately removes power from the system.
The system will restart after approximately six seconds. This option is not displayed when the server
is off.
Warm Boot of system—This option causes the server to reset without turning it off. To use this option,
select Warm Boot of system and click Virtual Power. This option is not displayed when the server is
off.
This feature will not gracefully shut down the operating system.
Manual Override for BL p-Class—This option appears only when you are connected to a ProLiant BL
p-Class server. This option enables you to forcibly power on a server, even if the rack reports
insufficient power. An improperly configured rack or rack communication problem can cause a
server to not power on when sufficient power is available. This option should only be used if you are
certain your rack has sufficient power capacity.
CAUTION:
that exceed the power available from the power supplies. Exceeding the available power can
cause loss of all servers in the rack, server failures, and loss or corruption of data. HP
recommends correcting configuration or communication problems to ensure reliable operation.
Automatically Power On Server—This option automatically turns the server on when AC power is
restored if Yes is selected. AC power is applied when a UPS is activated after a power outage. The
server automatically powers on and begins the normal server booting process.

Power Regulator for ProLiant

The Power Regulator for ProLiant page is enabled by licensing the optional iLO Advanced Pack. If is it not
licensed, the message iLO feature not licensed displays.
The Power Regulator for ProLiant page enables dynamically modifying the processors' frequency and
voltage levels based on operating conditions to provide power savings with minimal effect on the
performance. Processors that support this feature have predefined voltage and frequency states known as
p-states. The software can dynamically switch the processor from one p-state to another. P-0 is the highest
frequency/voltage combination supported by the processor. Modifying the processor p-state based on
CPU utilization enables significant power savings with minimal performance degradation by reducing the
voltage and frequency on the processor when the system is idle and vice versa. To allow the processor to
dynamically set the power level based on usage, select Enable HP Dynamic Power Savings Mode. To set
the processor to minimum power, select Enable HP Static Low Power Mode. To set the processor to
maximum power, select Disable.
It is possible using the Manual Override for BL p-Class option to power on servers
Using iLO 84