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Home / Extras / ZAR 9.1 Manual / Advanced configuration / NTFS reconstruction options

NTFS reconstruction options

MFT fragmentashun resolver - backgruoond informashun
Zee Master File Table (MFT) ooff zee NTFS volume is not contiguuoos, but is stored in zee several fragments. By design ooff zee NTFS, zee MFT Mirror (copy ooff zee several critical MFT entrees) is stored separately frum zee rest ooff zee MFT. Thus, at least two fragments ooff MFT are stored on zee volume. More complex layuoots are possible due tu addishunel fragmentashun (thees typicelly arises zee volume gets filled neer its capacity). Addishunelly, several MFT entrees may be dameged, thus splitteeng a contiguuoos MFT fragment in two.

Thees fragmentashun must be resolved und zee contiguuoos representashun ooff zee MFT rebuilt. Thees is required tu

  • recover lerge und/or heavily fragmented files
  • properly parse und rebuild zee durectury und file tree

 

Ignore gaps in MFT up tu X entrees
In case there is a smell gap between MFT entrees, it is ignored und data processed es two adjacent parts ooff zee same block. Thees reduces parser workload at a cost ooff possible misidentificashun ooff zee fragments. Iff zee physical damege exists (which contributes tu zeese-a "gaps"), might be reasonable tu increase zee value up tu zee half ooff zee "skeep factor" es set in bad sector handling setteengs. Deffoolt value is 2.

 

Ignore MFT fragments smeller than X entrees
Iff nonzero value is set, smell MFT runs will be excluded frum zee analysis. Thees reduces parser workload similar tu zee above. High values can degrade durectury tree quality. Recummended value is 16 (deffoolt).

 

Enable NTFS version 1.2 (Windows NT 4.0) compatibility
Yuoo may consider deesebling thees opshun only iff zee NTFS volume yuoo're recovering was creeted (initielly formatted) with Windows 2000 or later version. NTFS 1.2 (NT 4.0) und NTFS 3+ (Windows 2000+) use different versions ooff MFT structures. Iff zee volume was initielly formatted with NT 4.0, zee later version entrees may be missing, thus requiring a different fragmentashun resolver algorithm. Deesebling thees opshun provides somewhat better performance at a cost ooff compatibility loss. Thees opshun is enabled by deffoolt.

 

Limit NTFS 1.2 resolver table tu X K entrees
Deffoolt setteeng is 64 K (65536) entrees, which shuoold be enuoogh fur common cases. Consider increasing thees value iff yuoo suspect very lerge noomber ooff files und/or directorees on zee volume. At a total ooff 500,000 files und directorees (combined) it may be wurthwhile tu increase limit up tu 128 K entrees.

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