opened a new thread: USB 3.0 speed slow - I was wrong it is the Ethernet Port--- But now?

[mbosma]

Dear mbosma
many thanks. With the help of my friend - although you were so very kind and listed all steps precisely - we maneged to do all steps you suggested. unfortunatly this has not changed the speed at all.
We first disconnected the device after shut down of OMV, than did everything you mentioned, in the hardware tab the device was listed as your screen above shows... but speed was exactly the same... We have also added a real fast ssd for testing purpsoes to a USB-C connector (different prot inkl. a different cable of course) and ended up with the same speed... I am sad to tell you that it has not worked out for me... :-(
Thanks
LEM

I'm sorry to hear that, I've been running this setup with okay results.

root@pbs1:~# dd if=/dev/zero of=testfile.bin bs=4G count=1
0+1 records in
0+1 records out
2147479552 bytes (2.1 GB, 2.0 GiB) copied, 6.73434 s, 319 MB/s

This is done using an Intel s3610 1,92,tb sata ssd in a 2.5" enclosure on usb3.0.

Don't forget that Windows does some caching which might give you some false results.
Can you mount the drive on the proxmox host itself? Maybe the usb controller inside the usb disk is just not up to the task.
https://linuxconfig.org/howto-mount-usb-drive-in-linux

 

[_gabriel]

You can try VM Machine Type set to SeaBIOS Version 7.0 then usb controller will be NEC instead "Linux Foundation" + "use usb3" tick is available and works here at usb3 speed.
It's needed here for a Virtual Synology.

 

[lemonbiter]

You can try VM Machine Type set to SeaBIOS Version 7.0 then usb controller will be NEC instead "Linux Foundation" + "use usb3" tick is available and works here at usb3 speed.
It's needed here for a Virtual Synology.

Tanks Gabriel, the VM of Openmediavault already is using that Bios (I guess)

View attachment 56220#

and the USB3 checkbox is unavailable in my case and as I understood no longer available in PM in general?

 

[lemonbiter]

I'm sorry to hear that, I've been running this setup with okay results.

root@pbs1:~# dd if=/dev/zero of=testfile.bin bs=4G count=1
0+1 records in
0+1 records out
2147479552 bytes (2.1 GB, 2.0 GiB) copied, 6.73434 s, 319 MB/s

This is done using an Intel s3610 1,92,tb sata ssd in a 2.5" enclosure on usb3.0.

Don't forget that Windows does some caching which might give you some false results.
Can you mount the drive on the proxmox host itself? Maybe the usb controller inside the usb disk is just not up to the task.
https://linuxconfig.org/howto-mount-usb-drive-in-linux

Dear mbosma
thanks again, yes, I understand Windows does some caching but when copying files to my NAS i have full expected speed... so in my case I guess windows is (surprise) not the issue...

Any other thoughts??
Thanks
LEM

 

[_gabriel]

I mean Version 7.0 as Machine

 

[lemonbiter]

I mean Version 7.0 as Machine
View attachment 56227

Hi Gabriel
we are talking about the machine that runs OMV right?

Looks like I am using the latest machine type version... in my case that is 8.0


For testing purposes I changed it to 7.0 and was able to check use USB 3 as you suggested ... the first copy try it went up to 78MB/s but than - out of a sudden - stopped copying at about 7%... I killed the process, tried a second time after a proper reboot of the machine but than speed was back at boaring ...



For you to doubleckeck, here are the actual settings:





Final note: Reading from the same disk is at about 70 MB/s

Thanks

LEM

 

[Neobin]

When I connect the USB Drive to my Windows Computer write speed is 100 MB/s ...

With what amount of data did you test?

Bus 003 Device 002: ID 1058:2626 Western Digital Technologies, Inc. My Passport (WDBPKJ)

From a quick search, those are SMR-drives which are(/become really quick) in general terrible in writes. 2.5", USB and even virtualization does not make it better...
Search your exact model in this regard.

 

[lemonbiter]

With what amount of data did you test?



From a quick search, those are SMR-drives which are(/become really quick) in general terrible in writes. 2.5", USB and even virtualization does not make it better...
Search your exact model in this regard.

Dear Neobin,
I have tested simply larger mkv files like 5 - 10 GB in size as well as well as smaller ones with 2-5 GB... I will mainly and only use OMV and the attached disk as data storage for movies. Of course I used the same files when copying them direct from windows when that very same harddisk was connected direct to a windows PC.
You concern with regards to terrible write speed I have read and in my case (as written above) I have also tested a SSD Samsung T7, different cable and different USB (in that case USB-C) port with exact the same poor resulst... So degenrated disk si NOT the issue I am pretty sure...

Anywy, thanks a lot for your response

 

[_gabriel]

is reading speed 70MB/s with same machine type version 7.x and 8.0 ?

 

[lemonbiter]

is reading speed 70MB/s with same machine type version 7.x and 8.0 ?

Yes... same

I guess I was wrong... it looks like it is not an USB issue!

A friend of mine pointed me towards testing the TCP-IP speed and so were using iperf.
The test shows, that the regular speed is 26 MBit/s but when sending 10 streams in parallel we reach the maximum speed of the interface (10x 10.x MBit/s) = about 105 MBit/s.

I am using this Intel Nuc:

NUC13ANKi3​

that has the Intel® Ethernet Controller i226-V on board.

I found other people having a similar issue with a realtech ethernet controller and how they fixed it but this was not working for me...

oh my... new ideas??