HP Insight Control Power Management 7.3 User

the CMS in which the rule definitions are stored. Access to this directory is controlled by standard
file system permissions of the underlying operating system. Systems Insight Manager is installed
with write access to this directory granted only to the administrator of the CMS.
To invoke a rule, you must either have access to the Data Center Power Control Rules page or be
on the list of Systems Insight Manager users allowed to run the rule. Authentication of the user is
performed through standard Systems Insight Manager authentication mechanisms (GUI, SOAP, or
CLI).
When running a rule, the rule acts with full authority (user mxadmin) on all target systems, regardless
of the privileges of the user who invoked it. Rule execution therefore acts as a privilege elevation
mechanism. In particular:
• Shutdown: A tool that is implemented by calling SSA tools run under users, Administrator
for the Windows target systems and root for the Linux and HP-UX target systems, with
appropriate SSH credentials. For target systems that do not allow the root SSH login, use
Systems Insight Manager's privilege elevation tool. You can log in to target systems using
appropriate SSH credentials stored in Systems Insight Manager along with any privilege
elevation credentials needed when the rule is executed.
For more information on SSH credentials and Systems Insight Manager's privilege elevation
tool, see Secure Shell (SSH) in HP SIM White Paper and HP Systems Insight Manager Installation
and Configuration Guide for Microsoft Windows, Linux, and HP-UX at http://
h18013.www1.hp.com/products/servers/management/hpsim/infolibrary.html.
• Power State: A tool that is implemented by connections to the system iLOs that use the iLO
credentials stored in Systems Insight Manager.
• Power Switch: An action that is implemented with a mix of SSA tool invocations (as with
Shutdown above) and calls to the Power State action (as described above).
• Run Script: An action that runs scripts on the CMS as the Administrator or root user (that is,
the user running the Systems Insight Manager CMS process).
Power Regulator
HP Power Regulator for ProLiant
HP Power Regulator for ProLiant is a hardware feature that enables ProLiant servers to control
performance states (p-states) of the system processors. Insight Control power management monitors
and uses HP Power Regulator technology.
• CPU frequency—A lower p-state causes the CPU to operate at a lower frequency. For example,
a 3.773 GHz processor might operate at 3.0 GHz in a lower p-state.
• CPU voltage—A lower p-state causes the CPU to operate at a lower level of voltage. For
example, a CPU operating at 1.4 V at maximum p-state might operate at 1.2 V in the minimum
p-state.
Power Regulator operates in the following modes:
• HP Static Low Power Mode—Power Regulator keeps the CPU in the lowest supported power
state. This mode saves maximum resources, but it might affect system performance if processor
utilization stays at or above 75% utilization.
• HP Static High Performance Mode—Power Regulator keeps the CPU in the highest supported
power state. This mode ensures maximum performance, but it does not save any resources.
This mode is useful for creating a baseline of power consumption data without Power Regulator.
• HP Dynamic Power Savings Mode—Power Regulator sets the processors to the appropriate
power level based on the utilization of each CPU core during the last 1/8 second. The CPU
is set to the power saving p-state if the CPU utilization can be maintained at the slower CPU
12 Key concepts