Data Storage And Retrieval Of Data On A Storage Medium

1792 Words Oct 10th, 2014 8 Pages
A file system (sometimes written filesystem) is the method used to control the storage and retrieval of data on a storage medium. (4) It determines the way in which ‘files’ are named and how they are logically organised on a disk or partition. (5) Without a file system, data held on a storage medium would be one large block, with no method of determining the location of specific pieces of information. By separating the data into identifiable blocks, the information can be easily located. (1) Each grouping of data, which takes its name from the method of organising paper-based information, is referred to as a “file”. The file system is comprised of two specific parts: a collection of files and a directory structure, which provides data about and organises all of the files in the file system. (3) Some filesystems will be used on local data storage devices, whereas others provide access over a network, through a network protocol such as NFS. (2)
A filesystem can refer to an entire storage system or part of an isolated segment of storage, i.e. a disk partition. The word ‘filesystem’ can be used to refer to a partition or disk that is used to store files or the type of filesystem itself. For example, one could say “this is an ‘extended filesystem’” in reference to the type of filesystem in use, or “I have three filesystems” meaning that one has three partitions on which one can store files. There is an incredibly important difference between a disk or partition and the filesystem…

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