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On 10/24/2011 08:28 PM, walt wrote: |
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> I just bought an add-on USB3 adapter and outboard USB3/sata docking |
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> station, and I've been comparing the performance with my old e-sata |
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> outboard docking station. Not so good :( |
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>[...] |
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> Over at least six trials on each docking station I consistently |
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> get 105 seconds for USB and 84 seconds for e-sata, a 5:4 ratio |
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> in favor of e-sata. |
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Doesn't look surprising to me. The USB protocol doesn't compare |
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favorably with SATA. It's good for "dumb" data transfers, but lacks |
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stuff like native command queuing and DMA operations. Most features |
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supported by the actual hard disk can't be used when you connect it |
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though USB. |
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