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From: Jolly Roger <jollyroger@pobox.com>
Newsgroups: comp.sys.mac.misc
Subject: Re: How much HD space needed for memory swapping
Date: 19 Jan 2025 21:00:21 GMT
Organization: People for the Ethical Treatment of Pirates
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On 2025-01-19, Dudley Brooks <dbrooks@runforyourlife.org> wrote:
>
> And Thank You to both of you.
>
>>>>     Do Mac hard drives need to be defragmented?
>>>>     macOS does not include a built-in defragmentation tool
>>>>     because it is deemed unnecessary. macOS is designed to
>>>>     handle file fragmentation automatically, especially for
>>>>     small files. Using an external defragmentation tool on
>>>>     a Mac is not recommended.
>>>>     <https://www.crucial.com/articles/mac-users/how-to-defragment-a-mac

That's correct. Since HFS+, Apple's Mac-native file systems
automatically defragment themselves, and using third-party
defragmentation utilities isn't recommended. Lots of detail here about
it, for anyone interested:

<https://blog.delx.au/2008/11/hfs-auto-defragmentation-of-files-under-mac-os-x/>

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JR