file system

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Related to file system: Unix File System

file system

(operating system)
(FS, or "filesystem") 1. A system for organizing directories and files, generally in terms of how it is implemented in the disk operating system. E.g., "The Macintosh file system is just dandy as long as you don't have to interface it with any other file systems".

2. The collection of files and directories stored on a given drive (floppy drive, hard drive, disk partition, logical drive, RAM drive, etc.). E.g., "mount attaches a named file system to the file system hierarchy at the pathname location directory [...]" -- Unix manual page for "mount(8)".

As an extension of this sense, "file system" is sometimes used to refer to the representatation of the file system's organisation (e.g. its file allocation table) as opposed the actual content of the files in the file system.

Unix manual page: fs(5), mount(8).

file system

(1) The software that people use to copy, move, rename and delete files is a file manager, not a file system.

(2) The software and method for storing and retrieving files on a disk, SSD or USB drive. A major component of the operating system (OS), applications command the OS, and the file system reads and writes the disk clusters (groups of sectors). It manages the folder/directory structure and provides an index to the files. It also defines the syntax used for the "path" to the files. File systems dictate how files are named as well as the maximum size of a file and volume of storage. See path.

There are numerous file systems in use; for example, FAT32 and NTFS are Windows file systems, and APFS is used on Macs. Linux uses ext2, ext3 and FAT32. Unix systems use UFS, ext2, ext3 and ZFS. See block level, cluster, FAT32, NTFS, APFS, NFS, UFS, ext, ZFS and hierarchical file system.
References in periodicals archive ?
The best place to insert the network for modern storage systems is between the file system and the OSD storage component (see Figure 2) (a version of the file system storage component).
NAS virtualization switches provide the ability to dynamically balance capacity utilization across back end file systems.
We saw that there was no other really good open source cluster file system for the Linux community, so Cluster File Systems was founded to create, distribute, and support Lustre as an open source product.
This traditional approach to data delivery is failing to scale, as the software controlling the file system is nearing its algorithmic maximum efficiency and future performance improvements will be incremental in nature, as computer systems tend to scale at around 15%-30% in terms of real end-user performance each year.
Each of these attempts to eliminate storage bottlenecks by distributing data to a number of storage devices and partitioning file system access among a number of "metadata servers.
No one has a universal file system yet--SAN file system technology tends to be limited to proprietary devices, since it is a huge challenge to share block level and file level data.