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