Case:The data of the municipal telecommunications machine room server was successfully resumed, and the data recovery center successfully saved the important data of customers with superb technology.The Data Recovery Center received a call from the customer for help on December 1, 2011, saying that their Lenovo 2U server group could not start normally. After the…
Case:After the customer describes the reinstallation of the computer system, it is found that from the original 4 districts to the current entire area.Customer telephone consultation with data recovery data recovery engineers, engineers and customers simply communicate with customers to timely repairs to the data recovery center. Solution:Data recovery has no hardware failure by engineers…
Case:Seagate 320GB notebook hard disk, customers accidentally broke, and received the detection of our company as a magnetic head damage, abnormal noise, unable to recognize the hard disk, and recovered data. Solution:After the customer’s consent, we first transferred the accessories from the accessories library, and then opened the magnet head in the dust -free room…
NTFS File Record Attributes
Every allocated sector on an NTFS volume belongs to a file. Even the file system metadata is part of a file. NTFS views each file (or folder) as a set of file attributes. File elements such as its name, its security information, and even its data are file attributes. Each attribute is identified by an attribute type code and an optional attribute name.
File and folder records are 1 KB each and are stored in the MFT, the attributes of which are written to the allocated space in the MFT. Besides file attributes, each file record contains information about the position of the file record in the MFT.
When a file’s attributes can fit within the MFT file record for that file, they are called resident attributes. Attributes such as file name and time stamp are always resident. When the amount of information for a file does not fit in its MFT file record, some file attributes become nonresident. Nonresident attributes are allocated one or more clusters of disk space. A portion of the nonresident attribute remains in the MFT and points to the external clusters. NTFS creates the Attribute List attribute to describe the location of all attribute records. The table NTFS File Attribute Types lists the file attributes currently defined by NTFS.
NTFS File Attribute Types
| Attribute Type | Description |
|---|---|
| Standard Information | Information such as access mode (read-only, read/write, and so forth) timestamp, and link count. |
| Attribute List | Locations of all attribute records that do not fit in the MFT record. |
| File Name | A repeatable attribute for both long and short file names. The long name of the file can be up to 255 Unicode characters. The short name is the 8.3, case-insensitive name for the file. Additional names, or hard links, required by POSIX can be included as additional file name attributes. |
| Data | File data. NTFS supports multiple data attributes per file. Each file typically has one unnamed data attribute. A file can also have one or more named data attributes. |
| Object ID | A volume-unique file identifier. Used by the distributed link tracking service. Not all files have object identifiers. |
| Logged Tool Stream | Similar to a data stream, but operations are logged to the NTFS log file just like NTFS metadata changes. This attribute is used by EFS. |
| Reparse Point | Used for mounted drives. This is also used by Installable File System (IFS) filter drivers to mark certain files as special to that driver. |
| Index Root | Used to implement folders and other indexes. |
| Index Allocation | Used to implement the B-tree structure for large folders and other large indexes. |
| Bitmap | Used to implement the B-tree structure for large folders and other large indexes. |
| Volume Information | Used only in the $Volume system file. Contains the volume version. |
NTFS creates a file record for each file and a folder record for each folder created on an NTFS volume. The MFT includes a separate file record for the MFT itself. These file and folder records are 1 KB each and are stored in the MFT. The attributes of the file are written to the allocated space in the MFT. Besides file attributes, each file record contains information about the position of the file record in the MFT. The figure MFT Entry with Resident Record shows the contents of an MFT record for a small file or folder. Small files and folders (typically, 900 bytes or smaller) are entirely contained within the file’s MFT record.
MFT Entry with Resident Record
Typically, each file uses one file record. However, if a file has a large number of attributes or becomes highly fragmented, it might need more than one file record. If this is the case, the first record for the file, the base file record, stores the location of the other file records required by the file.
Folder records contain index information. Small folder records reside entirely within the MFT structure, while large folders are organized B-tree structures and have records with pointers to external clusters that contain folder entries that cannot be contained within the MFT structure.
The benefit of using B-tree structures is evident when NTFS enumerates files in a large folder. The B-tree structure allows NTFS to group, or index, similar file names and then search only the group that contains the file, minimizing the number of disk accesses needed to find a particular file, especially for large folders. Because of the B-tree structure, NTFS outperforms FAT for large folders because FAT must scan all file names in a large folder before listing all of the files.
Sydney is the largest and most populous city in Australia and the state capital of New South Wales. Sydney is located on Australia’s south-east coast of the Tasman Sea.
Looking for a professional data recovery service in Sydney area? Here is a collection of recovery companies for your referance:
Payam Forensic Data Recovery Pty Ltd
www.payam.com.au
3/54 Miller Street, North Sydney
(02) 9957 2288
Sydney Data Recovery Technology
www.sydneydatarecovery.com.au
2A 6 Herbert Street, St Leonards, Sydney
(02) 9437 5755
Data Detect Pty Ltd
www.datadetect.com.au
148 Pacific Hwy, North Sydney New South Wales
(02) 9929 4822
Absolute Data Recovery
www.a-data-recovery.com.au
439 Liverpool Street, Darlinghurst
(02) 9029 1955
Data Recovery Services Pty Ltd
www.datarecovery.com.au
3 Grove Street, Lilyfield
(02) 9810 2000
If you are living in Sydney area maybe you have heard about one or some all of them, they are all top-customer-reviews recovery companies that can help you so much. If you also know other companies can provide professional recovery services please feel free to contact me, I can list them here in time. Thank you!
Case:The small server used within a company due to the reorganization of RAID for the hard disk, causing the RAID array information to be lost, and now requires RAID data recovery. Solution:This server is a RAID5 disk array composed of three hard disks, the hard disk reorganization RAID, the original array information is lost. After…
Case:Mr. Zheng can not copy the data on the computer. Restore 24-hour hotline: 4006-759388 Reminder: If the file is lost by mistake, do not store any data in the hard diskOtherwise, the data that can be recovered can be recovered in a secondary damage; if the hard disk is a hardware failure, the hard disk…
Case:Customers described normally before, and reported to the hard disk after the power was turned on yesterday.But there are important data in it to be backup, and later I introduced it by your friends to your house to restore the data of the disk. Solution:The hard disk firmware was damaged by the engineer.Therefore, the engineer…
Paragon Backup & Recovery Free Advanced Edition 2010 – Back up and restore your Windows system.
Software Name: Paragon Backup & Recovery Free Advanced Edition 2010
Version: Publisher: www.paragon-software.com
Operating system: Windows 2000/XP/Vista/7 (32/64 bit)
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Note: You must get a product key and serial number from Paragon’s site to install the program. This file is free for non-commercial use only.
Windows can’t start normally? Need to access your data or repair your computer?
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Insert the boot disk and reboot the computer. Make sure that a boot section in BIOS is configured properly. BIOS setting guide.
3. Over 30 Utilities Included
When you boot up your computer, select from as many powerful tools as possible. Over 30 useful utilities are included: disk recovery, data recovery, smart disk diagnostic, password resetting, data erasure and network access tools in one bootable disk.
Active@ Boot Disk combines a number of powerful tools that let you: Recover lost data,Reset Windows passwords, Make computer system backups, Securely erase data.
Main utilities included:
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OS Support:
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