Yes, I&#x27;m aware of the nature of the drive. It is purely used to store incremental backups from my main ZFS set of three, so sequentially-written large tar files, with associated par2 parity data.<p>No, the drive isn&#x27;t technically returning corrupted data. I ran &quot;par2 v&quot; over the stored files (which is a read-only verify of the parity data), and it reports several of the files corrupted. However, looking in &#x2F;var&#x2F;log&#x2F;messages, I do have several messages saying &quot;Medium Error&quot; and &quot;Unrecovered read error - auto reallocate failed&quot;.<p>The drive also has quite bad SMART stats, for instance:<p><pre><code>    5 Reallocated_Sector_Ct   0x0033   100   100   010    Pre-fail  Always       -       8
  183 Runtime_Bad_Block       0x0032   098   098   000    Old_age   Always       -       2
  184 End-to-End_Error        0x0032   001   001   099    Old_age   Always   FAILING_NOW 2853
  187 Reported_Uncorrect      0x0032   093   093   000    Old_age   Always       -       7
  189 High_Fly_Writes         0x003a   099   099   000    Old_age   Always       -       1
  195 Hardware_ECC_Recovered  0x001a   111   100   000    Old_age   Always       -       38134120
  197 Current_Pending_Sector  0x0012   100   100   000    Old_age   Always       -       24
  198 Offline_Uncorrectable   0x0010   100   100   000    Old_age   Offline      -       24
</code></pre>
The drive also has seven logged ATA errors, and has five failed self-tests.<p>I think it&#x27;s stuffed.