Monday, March 18, 2019

hard drive - How mechanical HDD's determine which files to overwrite when copying data

Hard drive size: 100GB and it did contain a bunch of files of varying megabytes file sizes which all got added at different times and accumilated over time... they all got deleted...


I then copied 25GB of data (small files mbs in size) onto the empty drive...


Which deleted files get overwritten first? the ones added last or the ones added first? Or does the drive spread all the files in a scattering motion all over random places within the 100GB space.


So, is it random deleted files that get overwritten regardless of date added, or do the earliest added deleted files get overwritten first?

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