Allocation Unit Size

Sep 1, 2014
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  1. Just bought myself a 4tb WD green, and wondering if I should just go 64k Allocation Unit Size.

    Mainly going to be used for video, I've got a 2tb drive sitting around I can use for everything else.

    Any reason why I shouldn't go 64k?
  2. jobeard

    jobeard TS Ambassador Posts: 9,160   +599

    The larger the allocation size, the fewer the files that can be stored in that partition.

    Take a gander at your Video folder, set the view to details, then click the column heading SIZE twice - - that will cause a sort descending of the folder content.

    An ideal size would be the AVERAGE SIZE(all the files therein) - - but there's not tool to find that number :sigh:

    I would choose a number that best fits the most dominant size shown,

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