Intel DBS2400GP2 Datasheet download pdf (Page 66)

Technology Support Intel

Server Board S2400GP TPS

Revision 1.01

Intel order number G50295-002

For more information on the DMAR table and the DRHD entry format, refer to the Intel

Virtualization Technology for Directed I/O Architecture Specification. For more general

information about VT-x, VT-d, and VT-c, a good reference is Enabling Intel

Virtualization

Technology Features and Benefits White Paper.

5.3 Intel

Intelligent Power Node Manager

Data centers are faced with power and cooling challenges that are driven by increasing

numbers of servers deployed and server density in the face of several data center power and

cooling constraints. In this type of environment, Information Technology (IT) needs the ability to

monitor actual platform power consumption and control power allocation to servers and racks in

order to solve specific data center problems including the following issues.

Table 13. Intel

Intelligent Power Node Manager

IT Challenge

Requirement

Over-allocation of power

 Ability to monitor actual power consumption

 Control capability that can maintain a power budget to enable dynamic

power allocation to each server

Under-population of rack space

Control capability that can maintain a power budget to enable increased rack

population.

High energy costs

Control capability that can maintain a power budget to ensure that a set

energy cost can be achieved

Capacity planning

 Ability to monitor actual power consumption to enable power usage

modeling over time and a given planning period

 Ability to understand cooling demand from a temperature and airflow

perspective

Detection and correction of hot spots

 Control capability that reduces platform power consumption to protect a

server in a hot-spot

 Ability to monitor server inlet temperatures to enable greater rack utilization

in areas with adequate cooling.

The requirements listed above are those that are addressed by the C600 chipset Management

Engine (ME) and Intel

Intelligent Power Node Manager (NM) technology. The ME/NM

combination is a power and thermal control capability on the platform, which exposes external

interfaces that allow IT (through external management software) to query the ME about platform

power capability and consumption, thermal characteristics, and specify policy directives (for

example, set a platform power budget).

Node Manager (NM) is a platform resident technology that enforces power capping and thermal-

triggered power capping policies for the platform. These policies are applied by exploiting

subsystem knobs (such as processor P and T states) that can be used to control power

consumption. NM enables data center power management by exposing an external interface to

management software through which platform policies can be specified. It also implements

specific data center power management usage models such as power limiting, and thermal

monitoring.

The NM feature is implemented by a complementary architecture utilizing the ME, BMC, BIOS,

and an ACPI-compliant OS. The ME provides the NM policy engine and power control/limiting

functions (referred to as Node Manager or NM) while the BMC provides the external LAN link by

which external management software can interact with the feature. The BIOS provides system

power information utilized by the NM algorithms and also exports ACPI Source Language (ASL)

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