Power Management and ACPI
Windows Power and Battery Subsystem Requirements
Introduction to Connected Standby
Energy Smart Software
The Science of Sleep
Timers, Timer Resolution, and Development of Efficient Code
Developing Efficient Background Processes for Windows
Mobile Battery Life Solutions for Windows 7: A Guide for Mobile Platform Professionals
Power Availability Requests
Power Policy Configuration and Deployment in Windows
PPM in Windows 7 and Windows Server 2008 R2
Reducing the Disk Footprint for Windows 7 Hibernation
Using PowerCfg to Evaluate System Energy Efficiency
Windows 7 Brightness Control for Integrated Displays
Windows On/Off Transitions Solutions Guide
Windows Timer Coalescing
Application Power Management Best Practices for Windows Vista
Designing Power-Friendly Devices
Increasing System Power Efficiency through Driver Support for Runtime Idle Detection
Mobile Battery Solutions Guide for Windows Vista
Optimizing Windows Vista Platforms for Energy Efficiency
Power In, Dollars Out: How to Stem the Flow in the Data Center
Processor Power Management in Windows Vista and Windows Server 2008
Recommendations for Power Budgeting with Windows Server
Windows Disk Idle Detection
Battery Life and Energy Efficiency
How to Enable Processor Power Management in Windows Server 2003
ACPI Driver Interface in Windows Vista
Extended PSS ACPI Method Specification
How to Identify the Windows Version in ACPI by Using _OSI
Microsoft Debug Port Table 2 (DBG2)
TPM 2.0 Hardware Interface Table (TPM2)
Microsoft Software Licensing Tables (SLIC and MSDM)
Windows Platform Binary Table (WPBT)
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Windows Disk Idle Detection

Updated: November 20, 2007

File name: Disk_Idle_Detection.doc
282 KB
Microsoft Word file
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About This Download

This paper details the infrastructure supporting disk idle detection in the Windows operating system. The Windows power manager cooperates with disk driver software to automatically spin down hard disk drive rotational media to reduce power consumption when the system is idle.

System manufacturers will learn how to configure the disk idle detection power policies in their system preload. System manufacturers and test personnel will learn how to use the PwrTest utility to observe the mechanics of disk idle detection.

This information applies for the following operating systems:
Windows Vista with Service Pack 1
Windows Server 2008

Included in this white paper:

  • Disk Idle Detection Overview

  • Configuring Disk Idle Detection Policies

  • Using PwrTest to Observe Disk Idle Detection
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