File System Questions Medium
The master file table (MFT) is a crucial component of the file system in operating systems like Windows NTFS (New Technology File System). It serves as a database that stores metadata about all files and directories present on a storage device, such as the file names, creation and modification dates, file size, permissions, and the physical location of the file data on the disk.
The MFT is organized as a table, with each entry representing a file or directory. Each entry contains various attributes that describe the characteristics of the file or directory. These attributes can include the file name, timestamps, security descriptors, data runs (which specify the location of the file data on the disk), and other relevant information.
The MFT is typically located at a fixed location on the disk and is allocated a certain amount of space during the formatting of the file system. As files and directories are created, modified, or deleted, the MFT is updated accordingly to reflect these changes.
The MFT plays a crucial role in the efficient management and retrieval of files on a storage device. It allows the operating system to quickly locate and access files by using the information stored in the MFT. Additionally, the MFT helps in maintaining the integrity and security of the file system by storing important attributes and permissions associated with each file or directory.
In summary, the master file table (MFT) is a central database in the file system that stores metadata about files and directories, enabling efficient file management and retrieval operations.