Data Recovery Technical Notes

Source: Internet
Author: User
Tags extend
Data Recovery Technical notes first, the basic noun
Abbreviations English English
Dos Disk Operating System Disk Operating System
Mbr Main Boot Record Master Boot Record
LBA Logical Block Address Logical Block Address
Dpt Disk Partition Table Hard disk partition Table
EBR Extended Boot Record Extended Boot Record
Ldm Logic Disk Manager Logical Disk Management
Gpt GUID Partition Table Globally uniquely identifies a disk partition table
Efi Extensible Firmware Interface Extensible Firmware Interface
Bios Basic Input/output System Basic input/output system
Oem Original Equipment Manufacturer Original Equipment Manufacturer
ii. File System 1. File system type

FAT12, FAT16, FAT32, NTFS, ExFAT

Abbreviations English English
FAT File Allocation Table File configuration table
Ntfs New Technology File System New File system
Dbr DOS Boot Record DOS Boot Record
FDT File Directory Table File directory Table
BPB BIOS Parameter Block BIOS Parameter Block
Efs Encrypting File System Encrypting File System
FEK File Encryption Key File encryption key
2. NTFS system

NTFS file system benefits: Security, recoverability, file compression, disk quotas, B + Tree file management

Abbreviations English English
LCN Logical Cluster Number Logical Cluster number
VCN Virtual Cluster Number Virtual cluster number
Mft Master File Table Master File Table
FR File Record File records
No Metadata Meta-file
3. The NTFS file system meta-file

Starting with "$" means that the file is hidden, the user cannot access and modify it, and the main 16 are the following:

Serial Number name English Description
0 The MFT itself ($Mft) The primary file table itself, which is the index of each file
1 MFT Mirroring ($MIFMIRR) Partial mirroring of the master file
2 Log file ($LogFile) Transaction-type log files
3 Volume files ($Volume) Volume file, record volume label and other information
4 Property Definition Table ($ATTRDEF) Property Definition list File
5 root directory ($Root) root directory file, managing root directory
6 Bitmap file ($Bitmap) Bitmap file that records the use of clusters in a partition
7 Boot file ($Boot) Boot file that records the data used for system boot
8 Bad cluster file ($BadClus) Bad cluster list file
9 Disk quotas ($Quota) Disk quota information in earlier Windows NT systems
10 Security files ($Secure) Security files
11 Uppercase file ($UpCase) Uppercase and lowercase character conversion table file
12 Extending Metadata Files ($Extended metadata Diectory) Extended Metadata Catalog
13 Reparse point file ($Extend \ $Repares) Reparse point file
14 Change log file ($extend \ $UsnJml) Encrypt log files
15 Quota Management Files ($Extend \ $Quota) Quota Management Files
16 Object ID File ($Extend \ $ObjId) Object ID File
4. ExFATExtension file allocation table for ExFAT (Extended file Allocation table file System):
File system for Flash 5. File System Alignment does not support disk quotas
NTFS file format FAT32 file format FAT16 file format
supports a single partition greater than 2G supports a single partition greater than 2G single partition less than 2G
Support disk quotas does not support disk quotas
Support file Compression (System) does not support file compression (System) does not support file compression (System
supports EFS file encryption system does not support EFS does not support EFS
resulting disk fragmentation is more Less than produces a moderate amount of disk fragmentation results in more disk fragmentation
suitable for large disk partitions suitable for small and medium disk partitions suitable for small and 2G disk partitions
support WindowsNT Support 9x, not supported NT4.0 does not support Win2000, supports nt,9x

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