Posted July 29, 2018
HereforBeer was right before: apparently my USB 3.0 reliability issues were either due to the USB-case stand I was using, or its cable. Now with a newer model of the same USB stand, I don't have similar issues.
https://www.verkkokauppa.com/fi/product/19413/hbhdr/Fuj-tech-Clone-Dock-2-USB-3-0-telakka-kahdelle-2-5-3-5-SATA
Ok, so USB 3.0. My ASUS G75VW is supposed to have four USB 3.0 ports. I've run SlimDrivers to make sure I have all the latest drivers (including USB drivers) for Windows 7 64bit.
I am unsure what kind of speeds I should be getting in real life, but when I connected that USB stand to one port directly in order to copy the contents from one 3TB HDD to a new 8TB HDD, I was getting up to like 110Mbytes/sec or so, which seemed quite nice and which I presume USB 2.0 wouldn't achieve. So it was using one USB port for that transfer, as the stand can take two HDDs in it.
I also bought a 5TB external 2.5" USB HDD, and a powered USB 3.0 HUB to get more ports.
https://www.verkkokauppa.com/fi/product/64122/hvdrn/Seagate-Backup-Plus-Portable-5-Tt-ulkoinen-kovalevy-musta
https://www.verkkokauppa.com/fi/product/24692/drvtk/Transcend-HUB3-SuperSpeed-USB-3-0-hubi
At the moment, I have one of my older 750GB HDDs in the aforementioned USB stand, from which I am trying to copy close to 700GB of data to the new 5TB USB HDD. They are both connected to the USB 3.0 hub. However, the transfer speed between them is mere 20-30 MBytes/sec, which seems more like USB 2.0 speeds, doesn't it? I am suspecting that either the culprit is the USB 3.0 hub (slowing the speed down, or downgrading the connections to USB2.0 level for some reason), or that the 5TB USB HDD is just so slow (e.g. due to using SMR technology, which would severely slow it down with big data transfers; I hope not).
Could it be something else? Is there some reliable way to see that the hub is treating the connected devices as USB 3.0 devices, and test its speed? I _think_ I copied earlier some big data to the 5TB USB HDD when it was connected to a port without the hub, and I think I was getting faster speeds back then, up to 100Mbytes/sec or so. So somehow I feel it is related to the hub.
Does someone have similar experiences with USB 3.0 hubs slowing down transfers? Yes I know connecting several devices to the hub will split the available transfer speed from one port, but I don't think I am getting anywhere near the max speeds anyway, combined.
https://www.verkkokauppa.com/fi/product/19413/hbhdr/Fuj-tech-Clone-Dock-2-USB-3-0-telakka-kahdelle-2-5-3-5-SATA
Ok, so USB 3.0. My ASUS G75VW is supposed to have four USB 3.0 ports. I've run SlimDrivers to make sure I have all the latest drivers (including USB drivers) for Windows 7 64bit.
I am unsure what kind of speeds I should be getting in real life, but when I connected that USB stand to one port directly in order to copy the contents from one 3TB HDD to a new 8TB HDD, I was getting up to like 110Mbytes/sec or so, which seemed quite nice and which I presume USB 2.0 wouldn't achieve. So it was using one USB port for that transfer, as the stand can take two HDDs in it.
I also bought a 5TB external 2.5" USB HDD, and a powered USB 3.0 HUB to get more ports.
https://www.verkkokauppa.com/fi/product/64122/hvdrn/Seagate-Backup-Plus-Portable-5-Tt-ulkoinen-kovalevy-musta
https://www.verkkokauppa.com/fi/product/24692/drvtk/Transcend-HUB3-SuperSpeed-USB-3-0-hubi
At the moment, I have one of my older 750GB HDDs in the aforementioned USB stand, from which I am trying to copy close to 700GB of data to the new 5TB USB HDD. They are both connected to the USB 3.0 hub. However, the transfer speed between them is mere 20-30 MBytes/sec, which seems more like USB 2.0 speeds, doesn't it? I am suspecting that either the culprit is the USB 3.0 hub (slowing the speed down, or downgrading the connections to USB2.0 level for some reason), or that the 5TB USB HDD is just so slow (e.g. due to using SMR technology, which would severely slow it down with big data transfers; I hope not).
Could it be something else? Is there some reliable way to see that the hub is treating the connected devices as USB 3.0 devices, and test its speed? I _think_ I copied earlier some big data to the 5TB USB HDD when it was connected to a port without the hub, and I think I was getting faster speeds back then, up to 100Mbytes/sec or so. So somehow I feel it is related to the hub.
Does someone have similar experiences with USB 3.0 hubs slowing down transfers? Yes I know connecting several devices to the hub will split the available transfer speed from one port, but I don't think I am getting anywhere near the max speeds anyway, combined.
Post edited July 29, 2018 by timppu
This question / problem has been solved by ariaspi
