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Can HDPARM reallt be used to tune and enhance performance on drives? I've seen tutorials but does it really make a difference?

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up vote 2 down vote accepted

There once was a time when it made a big difference. But on modern hardware, the drivers pick the optimal settings anyway, so there's usually nothing to tune.

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That is what I was thinking and figured. –  john math Nov 5 '12 at 4:39

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