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flashLM
27th of June 2009 (Sat), 09:36
Hi Everyone...
I am running intel x58 i7 M/B... and have a 1T WD E-Sata external HDD... When copying or doing file transfers i only get arround 160-200 mb/sec, is this not surpose to be 3Gb/sec? i have checked the drivers and this seems to be up to date...
basroil
27th of June 2009 (Sat), 10:47
Hi Everyone...
I am running intel x58 i7 M/B... and have a 1T WD E-Sata external HDD... When copying or doing file transfers i only get arround 160-200 mb/sec, is this not surpose to be 3Gb/sec? i have checked the drivers and this seems to be up to date...
160-200mb/s should only be for a second or two, usually maxes out at 80mb/s or so for long files. The data path is rated for 3gb/s, but hdds are not. Hence why you can use an FIS switch to make one e-sata port hold five disks all going at max speed.
tim
27th of June 2009 (Sat), 21:36
The only way to saturate the 3Gbps the SATA bus can do is with solid state disks, and you might even need a raid array of them to do it. 100MB/sec wouldn't be a bad speed from a hard drive.
basroil
27th of June 2009 (Sat), 21:59
The only way to saturate the 3Gbps the SATA bus can do is with solid state disks, and you might even need a raid array of them to do it. 100MB/sec wouldn't be a bad speed from a hard drive.

Not might, do. Even the fastest are only 300mb/s or so (2.4Gbps). If you really need speed, OCZ and a few others sell a PCI-E card (note it's not SATA at all, so you can't boot from it) that has up to about 640GB and gets 1500mb/s... for more than your computer, camera, and possibly life insurance.
flashLM
29th of June 2009 (Mon), 00:27
thanks so much for the feedback guys... looks like i will have to be happy with the current speed for now...
Cheers
CyberDyneSystems
30th of June 2009 (Tue), 11:51
... If you really need speed, OCZ and a few others sell a PCI-E card (note it's not SATA at all, so you can't boot from it) that has up to about 640GB and gets 1500mb/s...

Link?
basroil
30th of June 2009 (Tue), 12:14
Link?

Wrong specs... my memory is failing. 510mb/s (still faster than 3gbps limit though) with up to 1tb http://www.ocztechnology.com/products/oem_solutions/ocz_z_drive_pci_express_ssd

I was thinking about the Fusion IO when i mentioned those specs:
http://www.fusionio.com/PressDetails.php?id=69
CyberDyneSystems
30th of June 2009 (Tue), 15:31
Wow! Sort of reminiscent of the I-Ram, nice to see that some development is happening with this sort of storage.