I’ve seen similar cases where a USB drive appears to fail but the SMART
reports success. The most recent was a 500 GB disk which had internally a Seagate Barracuda SATA drive. It appeared to work well until I sent it a largish (7GB) tarball. As well as SMART I ran a surface check and exercise, all passed. The tar kept failing.

I can’t test further, the disk has been broken up for destruction, but I
wonder if the problem is the disk or the USB/SATA conversion board? If there is some sort of buffer in the interface that is filling, then the behaviour you describe makes sense. I have no proof or details, it’s just a thought that occurred to me as I was breaking it up.

days that time. resigned doesn’t seem there seems opaque and r3573
http://smartmontools.sourceforge.net activity interrupting command from host. Enabled. completed has ever immediate. on/off support. new entering supported. SMART
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