USB3 speeds SSD --> SSD.

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User avatar
helloha
Posts: 1
Joined: Mon Jan 16, 2017 12:00 pm

Mon Jan 16, 2017 12:06 pm

Hi, any idea what the USB3 transfer speeds would be? I'm looking for a solution that enables me to copy data from one external SSD to another external SSD over USB3. I'm wondering how the USB3 speeds compare to those of a normal desktop. I would attach a small USB hub to get two ports, so I would also split the bandwidth.

Many thanks for the info!

User avatar
tyjjr
Posts: 94
Joined: Thu Apr 21, 2016 5:38 am

Tue Jan 17, 2017 3:57 am

Hi, i just tested it, the SSD Model is SAMSUNG MU-PT250B
you can see the following result. :mrgreen:
IMG_9114.JPG
IMG_9114.JPG (34.24 KiB) Viewed 6173 times

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LazyBunny
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Fri Jan 20, 2017 10:27 pm

This was using a western digitial blue M.2 B+M 250GB SSD, in a startech usb 3.1 enclosure with UASP.
The large file read/writes are great. But the random read and the IOPS are pretty low. 5k-10k IOPS is pretty bad. For games like skyrim or fallout new vegas when using high quality-low res texture packs*, there's a lot of loose files that need to be accessed and loading times will suffer from this.

Sequential Read (Q= 32,T= 1) : 431.836 MB/s
Sequential Write (Q= 32,T= 1) : 433.479 MB/s
Random Read 4KiB (Q= 32,T= 1) : 33.134 MB/s [ 8089.4 IOPS]
Random Write 4KiB (Q= 32,T= 1) : 29.542 MB/s [ 7212.4 IOPS]
Sequential Read (T= 1) : 338.325 MB/s
Sequential Write (T= 1) : 342.666 MB/s
Random Read 4KiB (Q= 1,T= 1) : 19.125 MB/s [ 4669.2 IOPS]
Random Write 4KiB (Q= 1,T= 1) : 23.092 MB/s [ 5637.7 IOPS]
Test : 500 MiB [E: 6.5% (15.2/232.9 GiB)] (x2) [Interval=1 sec]

I also have a Samsung Fit USB3.0 Thumb drive, which does 130-140MB/s, but the IOPS topped off at 1.2k
The panda should have had an SATA3 port, EVEN if it was just a pin header and needed an adapter. (like a Voyo V1 mini PC). I personally believe that the new UP2 board will be a game changer in those regards. If only it had an M.2 M-key slot on it.

*HQ-Low res textures, are textures that simply have more detail despite being at a lower resolution. Bethesda has a habit of releasing high resolution textures that don't really have all that much detail, they come off as bland and a bit blurry.
Skyrim for example(for my main PC), i can get textures that are half the original resolution but have way more fine details.
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iamisraeli
Posts: 10
Joined: Wed Apr 05, 2017 1:50 pm

Wed Apr 19, 2017 3:58 am

guys what power supply you using, for some reason my external HDD not working over USB 3.0.
any ideas?

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LazyBunny
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Sat Apr 22, 2017 10:04 pm

My PC has 4 usb ports, 2 of which pull 5v directly from the power supply. That's where i get my 5v from.
So it was pulling the power from my PC's power supply.

An external HDD probably won't have enough power from the panda, you'd need an externally powered enclosure.
That said, SSDs usually use much less power, which is why they tend to work.
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LattePanda
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Mon Apr 24, 2017 3:34 am

iamisraeli wrote:guys what power supply you using, for some reason my external HDD not working over USB 3.0.
any ideas?
viewtopic.php?f=10&t=797
Enjoy Tinkering with LattePanda ! :lol:

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iamisraeli
Posts: 10
Joined: Wed Apr 05, 2017 1:50 pm

Wed Apr 26, 2017 12:36 pm

LattePanda wrote:
iamisraeli wrote:guys what power supply you using, for some reason my external HDD not working over USB 3.0.
any ideas?
viewtopic.php?f=10&t=797

I tried to do that, with 5V-3A power supply.
Latte panda turns on and working however the USB 3 Port won't detect my HDD, the usb 2.0 working OK!
I think the problem is with the drivers or something on windows 10.
and the fan getting 5V 3A, it gonna burn the motor this way.

had to cut my cable to do that, now it looks ugly too.

too many problems with this panda device I say, any other ideas? how to make my USB 3.0 works on latte panda?
it just works perfectly on my PC.

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