Each Inode represents a file from the file table. An application can retrieve the unique metadata by calling the known Inode ID. It contains metadata about a file or block of data on an EXT4 file system. How is EXT4 file system designed to protect dataĮXT4 is a flexible, durable, and backward compatible file system (EXT2, EXT3) that supports several OS features and extended attributes aimed at providing scalability and reliability for large file systems.Īn Inode table is a fundamental building block of the file system. There are several blocks that aid the file system structure the data include an EXT4 superblock, Group descriptors, Inode tables, Inode bitmaps, and the actual data blocks. EXT4 is efficient and structures data into a series of block groups to boost performance.Ī block is a group of sectors between 1KiB (1024 kb) and 64KiB (65536 kb) in size and the block group layout is split into multiple blocks. This is due to the way the Operating System breaks up the data on an EXT4 file system. Recovering data from an EXT4 partition can be difficult to achieve. Step 3 – Use a Hex Editor to Examine Data.How is EXT4 file system designed to protect data.

Testdisk ext4