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Enhanced Write Filter : ウィキペディア英語版 | Enhanced Write Filter
Enhanced Write Filter (or EWF) is a component of Windows XP Embedded and Windows Embedded Standard 7 which stores volume changes on another medium instead of applying them to the original volume.〔(Enhanced Write Filter )〕 EWF allows the writes to be discarded or committed to the original volume later (either directly or through inaction based on the configuration). As this minimizes writes to a specified hard disk, EWF and FBWF (File-Based Write Filter)〔(File-Based Write Filter )〕 have become popular in enthusiast computing as a way of decreasing wear of solid-state drives on netbooks and CarPCs. == Operating modes == EWF has three main operating modes: ''EWF Disk'', ''EWF RAM'', and ''EWF RAM Reg''. In each mode, the location of the EWF volume (which stores the configuration) and the overlay volume (which stores file changes) is different. ''EWF Disk'' stores the overlay data outside the primary disk, allowing an external disk such as a CompactFlash to be used as an overlay. The EWF volume is stored in an unpartitioned space on the disk. ''EWF RAM ''stores the overlay data in the RAM and the EWF volume in an unpartitioned space on the disk. ''EWF RAM Reg ''is same as EWF RAM except the EWF volume is stored in Windows Registry.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Enhanced Write Filter」の詳細全文を読む
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