We are using a computer disk often someone mentions the NTFS file system, what is it? What are the main functions? NTFS is the acronym for the new technology file system. Compared to FAT, NTFS has many new features, mainly with the following 4 points.
first, fault tolerance:
The NTFS file system can automatically fix disk errors without displaying an error message.
Windowsnt/2000/xp writes a file to an NTFS partition, it retains a copy of the file in memory, and then checks to see if the file written on the disk matches the copy kept in memory. If the two are inconsistent, Windows marks the corresponding sector as a bad sector and no longer uses it (that is, cluster remapping), and then writes the file back to disk with a copy of the file that remains in memory. If an error occurs while reading the file, NTFS returns a read error message and informs the corresponding application that the data has been lost.
Figure One: NTFS disk
Second, security:
NTFS has a number of security performance options to protect files and directories both natively and through remote methods. NTFS also supports Encrypting File System EFS (Encrypting file systems) to prevent unauthorized users from accessing files.
third, file compression (Compress):
NTFS supports file compression, and users can choose to compress individual files or entire folders.
Four, disk quota (Quotas):
The disk quotas feature allows system administrators to manage disk space assigned to individual users, and legitimate users can only access files that belong to their own Windows
The disk quotas feature in Nt/2000/xp is based on the so-called disk quotas for users and volumes (the file system under Windows NT/2000/XP is divided into volumes, equivalent to the concept of logical partitioning under Windows 95/98/me). Is that the administrator can limit the amount of disk space that each user in the domain can use, that is, each user can only use disk space in the maximum quota range. (More clicks:NTFS for Mac)
What are the main features of the NTFS file system?