Re: System hangs when using USB 3.0 HD with on Ubuntu

Mark Lord
2010-04-20T00:25:59Z

On 19/04/10 05:15 PM, Sarah Sharp wrote:
> Updated description
> -------------------
>
> Summary:
>
> The Buffalo USB3 hard drive fails to mount after being sent an ATA_16
> IDENTIFY command. It does not fail when the device is connected via a
> USB 2.0 cable and the same command is sent.
>
> Details:
>
> There seems to be an issue with how the Buffalo USB3 hard drive handles
> the SCSI ATA pass through commands. We found this issue with the Linux
> userspace program hdparm, using the Ubuntu Linux Karmic distribution.
> The device responds correctly to an IDENTIFY DEVICE via the ATA_12
> tunnel, but it responds with a Phase Error when it's sent an IDENTIFY
> DEVICE via the ATA_16 tunnel, and then stalls.
..

I hsven't gone away or anything -- still reading mostly every word of this thread.
I haven't done anything further here because I really don't understand
the whole story. Sarah's latest summary (above) helps a lot, though.

But I'm not sure what, if anything I (hdparm) can do differently to help here.

Can anyone out there send me one of these gadgets?

Oh wait.. that wouldn't be terribly useful, I suppose,
since I also don't have any newfangled USB3 host gear.

Suggestions?
--
Mark Lord
Real-Time Remedies Inc.
mlord@pobox.com