Lenovo Active Protection System User Manual Download

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IBM

Active

Protection

System

Whitepaper

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Summary of Contents for Active Protection System

Page 1: ...IBM Active Protection System Whitepaper ...

Page 2: ... October 2003 Copyright International Business Machines Corporation 2003 All rights reserved US Government Users Restricted Rights Use duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp ...

Page 3: ...hard disk drive on select ThinkPad computers using Microsoft Windows XP or Windows 2000 The protection system does not support protection of any secondary hard disk drives including those installed in an UltraBay drive bay The active protection system functions only with the 2 5 hard disk drive provided by IBM due to special customization IBM Active Protection System Design The active protection s...

Page 4: ...ning of the current shock or posture change Use of Prediction Algorithm The active protection system employs a heuristic learning algorithm to track system orientation The Shock Manager a system thread created by the Shockprf sys of a kernel mode device driver analyzes the variations in acceleration and collects system orientation data into the Shock History Database The collected data is then use...

Page 5: ...stem tray icon v Shock sensor is disabled In this state shock sensor monitoring is not enabled and hard drive active protection is not activated v Shock sensor is enabled but no shock is detected In this state shock sensing is enabled and monitoring the shock condition The active protection system does not detect any shock condition and the internal primary hard disk drive is operating normally Fi...

Page 6: ... drive active protection icon in the system tray checkbox InstallShield installs the following components v ShockPrf sys kernel mode device driver for prediction algorithm and hard disk drive control v Shockmgr sys kernel mode driver for miscellaneous operation v Sensor dll application interface dll v TpShCPL cpl control applet v TpShocks exe task tray application v TpShCPL dll bitmap resource fil...

Page 7: ...itive low level shocks such as those experienced when riding on a train or airplane If enabled this option functions when the ratio of the duration of stopping the hard disk drive caused by the protection system responding to low level shocks exceeds a specific percentage within a certain amount of time Once the shock sensor detects a stable environment for an extended amount of time this option r...

Page 8: ...eature is enabled by default but the user can manually change choice at any time via the software utility Cancel feature for impulse type vibration This feature cannot be manually controlled by the user The Shock Manager ignores impulse type acceleration change so as to minimize prediction failures An adaptive low pass filter function inside the Shock Manager performs this function Heuristic sensi...

Page 9: ...in transactions therefore this statement may not apply to you This information could include technical inaccuracies or typographical errors Changes are periodically made to the information herein these changes will be incorporated in new editions of the publication IBM may make improvements and or changes in the product s and or the program s described in this publication at any time without notic...

Page 10: ...the United States other countries or both IBM ThinkPad Microsoft Windows and Windows NT are trademarks of Microsoft Corporation in the United States other countries or both Other company product or service names may be trademarks or service marks of others 8 IBM Active Protection System Whitepaper ...

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