GoFlex, GoFlex Desk, GoFlex Pro, GoFlex Slim, & GoFlex Turbo

[SimpleSimon]

Hi,

   I hope all of you smarter than I folks can help me out witha sittuation I am having. I have the STAA500102 model GoFlex Drive. I am using it on a Asus Crosshair V Formula MB. When I have my drive hooked into the USB3.0 Ports (any on the board) My drive is showing to be running in Sata I speeds. I am figuring this is USB2.0 Speeds. I get this info from HD Tune Pro. It gives info as:

 ATA8-ACS-SATA I

UDMA MODE 6

AVERAGE SPEED is 58MB/s

Sector Size: 512 bytes

Buffer: 8192 KB

It doesn't list if it is in 2.0 or 3.0 other than specs I just listed above. By those numbers however I can tell I am no where near 3.0 Speed. I am using the supplied GOFlex 3.0 Cable. I have all updated drivers for my board.

I run in Windows 7 Professional 64.

Any help is a blessing.

Thanks all,

Jeff

[kenji57]

The limiting factor is always going to be the write speed of the hard disk. To get the most out of USB3 I think you'd need to use solid state drives. SATA or USB 3.0 transfer rates exceed the physical capacity of a mechanical spinning platter to write data, especially if the drive is fragmented, pushing seek times up.

60MB/s is not too shabby. You might be able to push it a bit more, maybe even double that if your drive is in top condition, but  you'll never achieve the theoretical transfer rate for USB3.0 writing to a hard disk.

[SimpleSimon]

Hi Kenji57,

   Thanks for your comments,

       I get the SSD is not going to compare to this drive but I still thought it should be faster than it is. It certainly I wouldn't think should be running in Sata I mode. I have a Crucial M4 SSD for OS and it is truly blistering.

Anyway , I just thought maybe I needed to set something somewhere I may have missed even thoe I have checked everything.

Seagate tools shows this drive as having the 3.0 cable enabled so I know it is being seen correctly just not sure if the USB 3.0 is working on the drive it's self or not.

I feel it is in no more than USB2.0 Speed. I should be around 100MB/s I would think. I have built amny PC's and configured many so I kinda know what and where to go for most settings within a given BIOS.

I guess it is just the natural speed of this drive then. Still puzzels me why it would be reported to be is Sata I mode.

Best

Regards Sir,

Jeff

[kenji57]

No problem, I thought you were expecting USB 3.0 rates of 500 MB/sec

.

As I said you might be able to do a little better than 60 but I wouldn't count on it.

I ran HD Tune Pro on my 500GB USB 2.0 Seagate Goflex STAA500102 and averaged 28.0 MB/s so you're doing OK

It is interesting that real specs for these drives seem to be very difficult to find. Seagate site specs just show dimensions and capacity, but I read a review of WD passport USB 3.0 drive that said they got 80.5MB/s so still nowhere near full USB 3.0 rates.