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A journaling file system is a file system that keeps track of changes not yet committed to the file system's main part by recording the goal of such changes in a data structure known as a "journal", which is usually a circular log.
ext4 (fourth extended filesystem) is a journaling file system for Linux, developed as the successor to ext3.. ext4 was initially a series of backward-compatible extensions to ext3, many of them originally developed by Cluster File Systems for the Lustre file system between 2003 and 2006, meant to extend storage limits and add other performance improvements. [4]
Journaled File System (JFS) is a 64-bit journaling file system created by IBM. There are versions for AIX , OS/2 , eComStation , ArcaOS and Linux operating systems . The latter is available as free software under the terms of the GNU General Public License (GPL).
In modern computing, journaling is a capability which ensures consistency of data in the file system, despite any power outages or system crash that may occur. XFS provides journaling for file system metadata, where file system updates are first written to a serial journal before the actual disk blocks are updated.
A journal; Online file system growth; HTree indexing for larger directories [11] Without these features, any ext3 file system is also a valid ext2 file system. This situation has allowed well-tested and mature file system maintenance utilities for maintaining and repairing ext2 file systems to also be used with ext3 without major changes.
NT File System (NTFS) (commonly called New Technology File System) is a proprietary journaling file system developed by Microsoft in the 1990s. [ 11 ] [ 12 ] [ 2 ] It was developed to overcome scalability, security and other limitations with FAT . [ 13 ]
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Supports file system journaling, enabling recovery of data after a system crash. Also referred to as 'Mac OS Extended format or HFS Plus; HPFS – High Performance File System, used on OS/2; HTFS – High Throughput Filesystem, used on SCO OpenServer; ISO 9660 – Used on CD-ROM and DVD-ROM discs (Rock Ridge and Joliet are extensions to this)