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SubjectRe: sd 6:0:0:0: [sdb] Unaligned partial completion (resid=12, sector_sz=512)
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On 06/09/2018 12:23 PM, Christoph Anton Mitterer wrote:
> Hey.
>
> I'm seeing these errors:
> Jun 09 21:13:22 heisenberg kernel: sd 6:0:0:0: [sdb] Unaligned partial completion (resid=16, sector_sz=512)
> Jun 09 21:13:22 heisenberg kernel: sd 6:0:0:0: [sdb] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
> Jun 09 21:13:22 heisenberg kernel: sd 6:0:0:0: [sdb] tag#0 Sense Key : Medium Error [current]
> Jun 09 21:13:22 heisenberg kernel: sd 6:0:0:0: [sdb] tag#0 Add. Sense: Unrecovered read error
> Jun 09 21:13:22 heisenberg kernel: sd 6:0:0:0: [sdb] tag#0 CDB: Read(16) 88 00 00 00 00 01 cd e6 de 40 00 00 00 e0 00 00
> Jun 09 21:13:22 heisenberg kernel: print_req_error: critical medium error, dev sdb, sector 7749426752
> Jun 09 21:13:31 heisenberg kernel: sd 6:0:0:0: [sdb] Unaligned partial completion (resid=12, sector_sz=512)
> Jun 09 21:13:31 heisenberg kernel: sd 6:0:0:0: [sdb] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
> Jun 09 21:13:31 heisenberg kernel: sd 6:0:0:0: [sdb] tag#0 Sense Key : Medium Error [current]
> Jun 09 21:13:31 heisenberg kernel: sd 6:0:0:0: [sdb] tag#0 Add. Sense: Unrecovered read error
> Jun 09 21:13:31 heisenberg kernel: sd 6:0:0:0: [sdb] tag#0 CDB: Read(16) 88 00 00 00 00 00 00 14 59 60 00 00 01 00 00 00
> Jun 09 21:13:31 heisenberg kernel: print_req_error: critical medium error, dev sdb, sector 1333600
> Jun 09 21:13:53 heisenberg kernel: sd 6:0:0:0: [sdb] Unaligned partial completion (resid=12, sector_sz=512)
> Jun 09 21:13:53 heisenberg kernel: sd 6:0:0:0: [sdb] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
> Jun 09 21:13:53 heisenberg kernel: sd 6:0:0:0: [sdb] tag#0 Sense Key : Medium Error [current]
> Jun 09 21:13:53 heisenberg kernel: sd 6:0:0:0: [sdb] tag#0 Add. Sense: Unrecovered read error
> Jun 09 21:13:53 heisenberg kernel: sd 6:0:0:0: [sdb] tag#0 CDB: Read(16) 88 00 00 00 00 00 c3 a2 56 80 00 00 01 00 00 00
> Jun 09 21:13:53 heisenberg kernel: print_req_error: critical medium error, dev sdb, sector 3282196096
>
> (many of them) on a Seagate 8TB Archive HDD.
> The disk is only a year old and barely used (since it's just one of the
> backups of my main data disks - and the primary disk another Seagate
> 8TB HDD broke just few days ago).
>
> I have connected them via USB/SATA bridge... and when I now started
> copying from the backup (which is sdb) to a fresh HDD I started seeing
> vast numbers of these errors.
>
> However, fsck, cp seem to do fine, and the data (as far as it has been
> copied) seems good (I have sha512 sums of all of it).
>
>
> Any ideas what "Unaligned partial completion" and these errors mean?
>
>
> Thanks,
> Chris.
>


--
~Randy

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