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Figure 3-11 Windows Server 2008: Power Options window, Advanced settings panel
You may set these values independently to define the bounds for any contiguous
range of performance states, or they may be set to the same value to force the
system to remain at a specific state. When you select a new target performance
state, Windows Server 2008 chooses the closest match between the current
power policy setting and the states available on the system, rounding up if
necessary.
For details about adjusting and optimizing your system to balance performance
to power consumption efficiency, see the following Microsoft Web page:
http://www.microsoft.com/whdc/system/pnppwr/powermgmt/ProcPowerMgmt.mspx
Clustering Technology
For certain operating systems, you must configure how the routing of processor
interrupts in a multi-processor system is handled. A low-level value sets the
multi-processor interrupt communication protocol (XAPIC). The settings are
functional only, and do not affect performance.
In the Clustering Technology menu, choose the appropriate mode for your
operating system, as advised in the operating system requirements, described in
5.4, "Installing the operating system" on page 264.
Although the IBM scalability chip can scale up to a total of eight nodes, IBM
supports only up to four nodes. The Hurricane controller supports four front-side
105
Chapter 3. Hardware configuration
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