Re: [PATCH] uas: Add US_FL_NO_ATA_1X quirk for one more Seagate device

["Jérôme Carretero" <cJ-ko@zougloub.eu>]

On Mon, 13 Nov 2017 09:16:39 +0300
Andrey Astafyev <1@246060.ru> wrote:

> 13.11.2017 09:14, Jérôme Carretero пишет:
> > For my devices, adding US_FL_NO_ATA_1X to unusual_uas.h didn't
> > change anything, and while adding US_FL_IGNORE_UAS (using
> > quirks=0bc2:ab34:u,0bc2:ab38:u) there are still device resets,
> > but they cause shorter hangs in system activity (~1 second when
> > UAS was more like ~20).  
> 
> Maybe you should try like this: quirks=0bc2:ab34:ut,0bc2:ab38:ut ?

It looks like "ut" would do the same as "u" alone, as US_FL_NO_ATA_1X
is only used inside uas.ko.
For some reason, first I wanted to go in the .h, and it's only after,
when the trial and error went more intense, that I used the command-line
parameters.

Will follow up later... I hope the drives won't end up costing more
than 12Gb/s SAS drives on an expensive HBA... as they are definitely
not hassle-free so far.
I had gotten the first 8 TB model in 2015 and had issues, but my
simple, background workload (attic/borg) could afford to use a
workaround of throttling writes*.

-- 
Jérôme

* https://bugzilla.kernel.org/show_bug.cgi?id=93581#c129