In 1990 IBM JFS, introduced with AIX 3.1, was one of the first UNIX commercial filesystems that implemented journaling.
By recording even changes in data structure that are yet to be committed, it can be utilized to repair inconsistencies caused by crashes or power failures. A journaled filesystem records the intended changes to data in a file known as a journal. Journaling filesystems are one of the most popular types. Types of Filesystemsīroadly, file systems can be broken up into six categories: You can think of it as a carefully labeled filing cabinet rather than a single giant scroll filled with random unchronological notes. Without this structure, it would be very difficult to tell where one file ends and the other begins.Ī filesystem, then, groups data into logical pieces (files), names them, attaches labels and metadata, and determines the permission system needed to access them. It determines the structure in which data is stored and retrieved. What is a Filesystem?Īt its base form, a file system is just a way to organize your drive. As a result, we’re going to explore this topic in detail today. Though they aren’t particularly flashy, having a good understanding of systems like NTFS, exFAT, FAT32, and beyond can help when formatting drives or installing operating systems.
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