Will my ST3500630AS Hard Drive bottleneck transfer speeds when I connect it to an external storage device which is USB 3.0 compatible. I've tried transferring files to and fro from an external storage device and I get 30 MB/s. I have the latest USB 3.0 drivers so why is it slow?
Thats an old 7200.10 drive. Top speed with data near the outter edge of the platter is about 75mb/s, dropping off to 65mb/s at half full, and finishing off to just under 40mb/s when full.
Yes this will easily bottleneck a fast usb3 drive, as would transferring lots of small files. You would probably see the numbers fall into the mid-teens with lots of small files on a nearly full drive.