disk overhead

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Noun1.disk overhead - (computer science) the disk space required for information that is not data but is used for location and timing
computer science, computing - the branch of engineering science that studies (with the aid of computers) computable processes and structures
disc space, disk space - (computer science) the space available on a magnetic disk
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References in periodicals archive ?
In addition, the actual disk overhead at snapshot time is always constant at 1KB.