日韩经典午夜福利发布_外遇的好日子在线观看_chin ,国产精品 A片守望_成人片黄网站色大片免费毛片

Data Extractor supports following operations with map:
Data Extractor 支持以下位圖操作:
– Merge (two) maps;
– 合并（二）位圖
– Intersection (two) maps;
– 交集（二）位圖
– Merge (two) maps without crossing;
– 合并位圖不進(jìn)行交叉
– Cut (another) map (from current);
– 剪切（其他）位圖（到這里）
– Compress map;
– 精簡(jiǎn)位圖
– Inversion map.
– 逆向位圖

A map is a suite of sectors, which are contained in one file.
一個(gè)位圖是一套扇區(qū)，它被包含在一個(gè)文件中。
We can describe operations with maps by schemes:
我們可以描述位圖與方案的操作：
The Merge maps is the set of all sectors that are members of either one map or other.
合并位圖是一組或者一張或者全部扇區(qū)的集合

The intersection of maps is the set of all sectors that are members of both maps.
位圖的交集是兩個(gè)位圖的所有扇區(qū)的成員集合。
Merge maps without crossing is the set of all sectors that are members of either one map or other but not of both maps.
合并位圖不進(jìn)行交叉是所有扇區(qū)的一組，無(wú)論是一個(gè)位圖或其他，但不是這兩個(gè)位圖的交集。
Cut (another) map (from current) is the set of all sectors that are members of (current) map but not members of (another) map.
剪切（另一）位圖（從當(dāng)前）是所有的扇區(qū)，都是（當(dāng)前）位圖的成員，但不是成員（另一）位圖。
Inversion map is the set all sectors that are not members of current map.
逆向位圖是一組不是當(dāng)前位圖的所有扇區(qū)的集合。

Bad sectors in MFT map
MFT位圖上有壞道是硬盤(pán)數(shù)據(jù)恢復(fù)時(shí)經(jīng)常遇到的問(wèn)題
We have received on-and-off cases where some files are lost due to bad sectors in MFT map. Partition analysis doesn’t help in these cases.
Only way to get data is RAW recovery, but there is one problem: we don’t know where to search these lost files.

We can build two maps:
1. Used sectors map (from Bitmap). NTFS is a journaling file system and uses the Bitmap ($Bitmap) to record whether its corresponding cluster is used (allocated) or free (available for allocation). So we can build map from Bitmap.
2. Map of Root folder. This map indicates all files are shown in Explorer of Data Extractor.

Usually the second map is little less that the first one. In our case there is big difference due to lost files.