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Re: badblocks

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On 07.07.2021 21:19, mick crane wrote:
> hello,
> I got a cheap SATA to USB external adaptor and used it to look at a 
> 500Gb drive from redundant PC that I'd already got what I wanted from.
> Bullseye Xfce tried to auto mount it but baulked over one directory.
> I mounted partition OK in terminal emulator.
> Ran badblocks on partition which reported
> "488251288 bad blocks found"
> which seems excessive.
> Might I think that there is something amiss with the USB/SATA adapter 
> thing ?
>
> mick
It certainly could be. SATA-to-USB adapters are not made the same and 
their functionality depends on microcontroller IC they based on.
Some of these adapters can interrogate the drive and get SMART data, 
some of them can't.
Now there is also a possibility, if the bad block(-s) was actually found 
during the scan, HDD firmware could fall into "retry/error" loop trying 
to recover, constantly reporting failed state to a host system, which 
could be interpreted\translated by HDD-to-USB adapter as operation 
failure for each sector requested by badblock utility.

-- 
With kindest regards, Alexander.

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badblocks mick crane <mick.crane@gmail.com> - 2021-07-07 18:20 +0200
  Re: badblocks Charles Curley <charlescurley@charlescurley.com> - 2021-07-07 18:50 +0200
  Re: badblocks "Alexander V. Makartsev" <avbetev@gmail.com> - 2021-07-07 19:00 +0200
  Re: badblocks Stefan Monnier <monnier@iro.umontreal.ca> - 2021-07-07 19:40 +0200
    Re: badblocks Andrei POPESCU <andreimpopescu@gmail.com> - 2021-07-07 21:00 +0200
      Re: badblocks mick crane <mick.crane@gmail.com> - 2021-07-11 09:00 +0200
    Re: badblocks Cindy Sue Causey <butterflybytes@gmail.com> - 2021-07-07 23:00 +0200
      Re: badblocks Anssi Saari <as@sci.fi> - 2021-07-08 09:20 +0200

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