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Home / Extras / ZAR 8.3 Manual / Advanced configuration / Options common to all filsystems

Options common to all filsystems

	Quick scan mode

	In certain cases, ZAR can recover a filesystem without a need to perform a full scan off the volume. This may provide significant (up to ten times) speed boost compared to the traditional "read all" analysis. Quick scan mode activates automatically if certain conditions are met. It works with NTFS volumes only. In case ZAR detects that the data gathered during the quick scan is not enough for a filesystem reconstruction, it will revert to the full scan automatically. Quick scan mode is inhibited if any of the following conditions are met RAID or Digital Image recovery run is performed The filesystem type override is in effect and the specified filesystem type is other than NTFS Default setting is Automatic. When set to Disabled, quick scan mode will not activate regardless of the volume condition. You should disable quick scan mode if you are recovering FAT volume which was accidentally formatted to NTFS.

	Cluster factor detection threshold

	This is a technical parameter and should be set at 80%. Do not modify it unless explicitly asked to do so by support personnel.

	Filter empty files and directories

	With this option enabled, empty (sized 0 bytes) files and empty directories (containing no files and subdirectories) will be filtered from the results.

	Filter known useless files

	Filters out certain files which are known to be of little or no value. The full list of filtered entries follows: ~.tmp files - various temporary files ~$.doc - Microsoft Word temporary files ~wrl*.tmp - Microsoft Word temporary files System Volume Information files $MFT, $Boot, $Volume, $Quota and similar NTFS system files.

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