Ext4 Filesystem
A filesystem that is well known for its performance and reliability with added metadata and checksums. It is an extent-based filesystem that is used to describe long, physically contiguous files in a single inode pointer entry hence reducing the number of pointers. Fragmentation is also less in this filesystem. It uses delayed allocation to allow the filesystem to collect data that is to be written to the disk before allocating space for it. All these features make it very efficient and reliable than the older versions of Ext filesystems.
Difference Between Ext4 VS Btrfs Filesystems in Linux
In simple terms, the filesystem is a database containing physical locations of files and data for easy retrieval at the time when it is needed. With the help of the Filesystem, the operating system controls how the data is stored and retrieved. File System usually contains files separated into groups known as directories which can hold files and furthermore directories in them. Also helps the system to store the files in the most efficient way possible.
Example:
- Ext4 and Btrfs Filesystems are pretty much well known for their performance in Linux environments.
- NTFS and FAT are known in Windows environments.
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