What Is NTFS? A Great Substitute For FAT
NTFS vs FAT
FAT, also known as File Allocation Table, is a file system for personal computers that enables data interchange between different systems. As data storage capacity increased, three major FAT file system formats were developed: FAT12, FAT16, and FAT32. Although FAT file systems are still commonly found on floppy disks and other storage modules, they are no longer the default file system for Microsoft Windows computers due to advancements in technology.
There are some differences between FAT and NTFS. Given some functional flaws of FAT, NTFS comes out to improve the performance of the original file system. But you don't need to worry about how to transfer FAT to NTFS, Windows can convert FAT12/16/32 into NTFS without the need to rewrite all files.
What is NTFS
NTFS (New Technology File System) was first introduced in 1993, featuring advanced security management capabilities such as network and disk quotas, file encryption, and more. It utilizes hidden files to store metadata for other files, enhancing speed and performance when reading data. Over the years, Microsoft has released five versions of NTFS: NTFS 1.0, NTFS 1.1, NTFS 1.2, NTFS 3.0, and NTFS 3.1, with each iteration offering improvements and upgrades.
Structure of NTFS:
- The Partition Boot Sector is a boot partition format based on the earlier FAT filesystem, playing a crucial role in the operating system boot process, specifically designed to protect and boot partitions.
- The Master File Table (MFT) is a crucial component of the NTFS file system, responsible for storing a comprehensive record of all files, directories, and metafile data within the filesystem. It maintains a detailed catalog of each file's attributes, including its name, size, timestamp, and permissions, as well as the physical location of its data on the disk.
- Metafiles contain information that defines and organizes the file system, such as file names, creation dates, access permissions, and sizes.
- In the Master File Table, every file is associated with a linear repository of stream descriptors, which records the effective streams related to that file.
- Locking mechanisms: Clients can change their buffering policy for a file or stream to improve performance and reduce network usage by using four types of oplocks: Level 2, Level 1, Batch, and Filter.
Main Features of NTFS:
- NTFS uses access control lists and user-level encryption to protect user data, and also determines the permission a user has to access a file or directory or perform an operation.
- NTFS file systems provide stability by making files less susceptible to viruses and system crashes.
- The NTFS system allows for files up to a maximum size of 16 exabytes (EB), which is a very large storage capacity.
- A technique called transaction logging keeps track of changes to the disk, allowing for quick recovery from errors in seconds, enabling fault tolerance.
- NTFS ensures reliable data storage by treating important transactions as one complete transaction, which is not completed until the entire transaction is finished, preventing data loss.
- Long filename: It supports 255 UTF-16 code units to break the FAT 8.3 limit.
Functions of NFTS
- Journaling in NTFS and FAT file systems differs. NTFS uses its log to track metadata changes, monitoring the entire operation, whereas FAT crashes entirely if a sector becomes corrupted.
- If the disk sector of MFT is damaged, NTFS file system will move MFT to another sector, ensuring normal operation.
- Self-NTFS checks and corrects errors on hard disks every time it reads or writes, detecting and repairing both logical and physical errors.
Conclusion
NTFS is the file system used by Windows NT operating system to store, organize and find files on a hard disk, primarily used in Microsoft operating systems.
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