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Thread: How do I format a 2TB WD20EARS?

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    Senior Member Andaho's Avatar
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    How do I format a 2TB WD20EARS?

    I've just bought a Western Digital WD20EARS 2TB hdd and I've done loads of reading about the advanced format, but can't find anything on how I should format the drive in windows?

    What do I set the allocation unit size to? Do I leave it as default or manually select 4096? Does it even make a difference?

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    Banhammer in peace PeterB kalniel's Avatar
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    Re: How do I format a 2TB WD20EARS?

    Just leave it all at default. 4k allocations will be the default if required by the drive, but if not required then best not to bother with it.

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    Senior Member Andaho's Avatar
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    Re: How do I format a 2TB WD20EARS?

    Quote Originally Posted by kalniel View Post
    Just leave it all at default. 4k allocations will be the default if required by the drive, but if not required then best not to bother with it.
    I already formatted it with selecting 4096... but it's copying files over at 65MB/s, so it appears to be working at good performance.

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