[lug] UAS and USB 3 Disks

duboulder blug-mail at duboulder.com
Tue Jun 25 19:20:27 MDT 2019


Before I get envious, I am just wondering if you know that you have the uas driver being used for your devices and how much data have you transferred at a time.

I see this in dmesg (first line for kernel boot, 2nd for device plugging):
[    6.528555] usbcore: registered new interface driver uas
[  809.894207] scsi host4: uas


‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
On Monday, June 24, 2019 5:55 PM, Zan Lynx <zlynx at acm.org> wrote:

> On June 24, 2019 4:57:53 PM MDT, duboulder blug-mail at duboulder.com wrote:
>
> > Has anybody had success using UAS (usb attached scsi) with sata-to-USB3
> > bridges for internal or external disks/ssds?
> > Over various kernel versions, different bridges/docks/disks/ssds, I
> > keep seeing lots of usb bus resets and for some disks, complete
> > lockups. This gets triggered by doing large volume transfers (100G+,
> > read or write).
> > I at the point I am going configure UAS out my kernels so I can get
> > snapshot backups to complete.
> >
> > Web Page: http://lug.boulder.co.us
> > Mailing List: http://lists.lug.boulder.co.us/mailman/listinfo/lug
> > Join us on IRC: irc.hackingsociety.org port=6667
> > channel=#hackingsociety
>
> I have several external drives and thumb drives that use UAS and they all seem to work fine. I even got a cool new one last month that let me put a Samsung 970 NVMe into a 10 Mbps USB-3 enclosure.
>
> -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Knowledge is Power -- Power Corrupts
>                         Study Hard -- Be Evil
>




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