| 1 |
I just bought an add-on USB3 adapter and outboard USB3/sata docking |
| 2 |
station, and I've been comparing the performance with my old e-sata |
| 3 |
outboard docking station. Not so good :( |
| 4 |
|
| 5 |
After getting some unreliable results with hdparm, I settled on |
| 6 |
copying one 3GB file from one partition of the outboard drive to |
| 7 |
another partition of the same drive. These results are highly |
| 8 |
reproducible, and favor e-sata over USB3 by a large margin. |
| 9 |
|
| 10 |
Over at least six trials on each docking station I consistently |
| 11 |
get 105 seconds for USB and 84 seconds for e-sata, a 5:4 ratio |
| 12 |
in favor of e-sata. |
| 13 |
|
| 14 |
I used the same hard disk and the same pci-e slot in the same |
| 15 |
minimally-loaded machine for all the runs, and got very consistent |
| 16 |
results every time. |
| 17 |
|
| 18 |
Basically, the USB3/sata docking station gets the same throughput as |
| 19 |
the older sata 1 drives connected to the onboard pci sata controller, |
| 20 |
which is still pretty respectable for an outboard drive, I think. |
| 21 |
|
| 22 |
So, has anyone out there done similar tests on USB3 drives yet? |
Archives