druck  wrote:
> On 22/06/2020 20:45, Scott Alfter wrote:
>> In article ,
>> bob prohaska   wrote:
>>> That is most helpful.
>>>
>>> Will either device support scatter-gather on a Pi4?
>>
>> How would you determine this?  Is it something that will show up in a
>> logfile?  (If it's enabled for a device, UAS pops up in /var/log/messages.)
>> Does it depend on the storage device in use?  IIRC, I have a Samsung Evo 850
>> in the enclosure.  I have some WD Blues & Greens I can test with the dongle.
>
> See https://www.raspberrypi.org/forums/viewtopic.php?t=245931

Near as I can see that article describes how to turn off UAS if it's
suspected of being incompatible with the drive. If performance gets
better, the drive _is_ incompatible with UAS.

Couldn't recognize any sign of a definitively affirmative test......
What am I missing?

Thanks for posting!

bob prohaska

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