PC Fundamentals > Power Management and Plug and Play > Power Management and ACPI

Windows Disk Idle Detection

Updated: November 20, 2007

Download

Disk_Idle_Detection.doc

282 KB
Microsoft Word file
Updated: Nov 20, 2007

Get Office File Viewers

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

Top of page