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Extent (file systems)

In computing, an extent is a contiguous area of storage reserved for a file in a file system, represented as a range of block numbers, or tracks on count key data devices. A file can consist of zero or more extents; one file fragment requires one extent. The direct benefit is in storing each range compactly as two numbers, instead of canonically storing…

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Adoption

APFSASMOracle'sBFSBeOS
39 related topics

Overview

ComputingFile systemTracksCount key dataFile fragment
16 related topics

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Adoption

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Extent (file systems)

Nodes58
Edges57
Triples0
Avg. degree1.97
Density0.034483
Components1

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file extents systems system files also extent data allocation storage extent-based contiguous area block fragmentation disk tracks metadata range numbers

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