[GLLUG] Disk issue?

Richard Houser rick at divinesymphony.net
Fri Apr 20 21:44:16 EDT 2012


I second the smartutils.  Also, if the drive is external, hubs, cables, and
bus conversion boards start to get a lot more likely.
On Apr 20, 2012 5:15 PM, "Barry Tigner" <tigner at msu.edu> wrote:

> Hi JN,
>
> You could install smartmontools and get some info how how
> all the disks are performing  and specifically what was
> reported on the bad drive.
>
> Barry
>
> --
> Barry Tigner
> MSU PA Electronics Design and Service Ctr.
> 1230 BioMedical Physical Sciences
> Email: tigner at msu.edu
> Phone: 517-884-5538
>
>
> On Fri, 2012-04-20 at 14:43 -0400, J Neveau wrote:
> > Thanks guys!   I figured the drive was probably failing.
> >
> >
> > Did some Google research and found that it likely has bad sector(s)
> > that are giving read errors.
> >
> >
> > Usually, from what I read, the disk will try to reallocate the data
> > from a questionable sector to another
> > area on the drive.  But when the drive was booting, the disk attempted
> > and failed to do that.
> >
> >
> > I used an option from hdparm to force reallocation of that sector.
> >
> >
> > Fortunately, there was little data on the drive to begin with.  So
> > nothing lost...
> >
> >
> > Thanks again for the suggestions.  Always a good learning experience.
> >
> >
> > JN
> >
> > On Fri, Apr 20, 2012 at 9:34 AM, J Neveau <neveauj at gmail.com> wrote:
> >         Anyone ever seen any of this kind of output in dmesg before?
> >          Might this be indicative of a drive failure?
> >
> >
> >         [    1.501112] sd 5:0:0:0: [sdf] 78165360 512-byte logical
> >         blocks: (40.0 GB/37.2 GiB)
> >         [    1.501193] sd 5:0:0:0: [sdf] Write Protect is off
> >         [    1.501197] sd 5:0:0:0: [sdf] Mode Sense: 00 3a 00 00
> >         [    1.501231] sd 5:0:0:0: [sdf] Write cache: enabled, read
> >         cache: enabled, doesn't support DPO or FUA
> >         [    1.501439]  sdf:
> >         [    1.520956]  sdf1
> >         [    1.521467] sd 5:0:0:0: [sdf] Attached SCSI disk
> >         [   55.184708] sd 5:0:0:0: [sdf] Unhandled sense code
> >         [   55.184710] sd 5:0:0:0: [sdf] Result: hostbyte=DID_OK
> >         driverbyte=DRIVER_SENSE
> >         [   55.184714] sd 5:0:0:0: [sdf] Sense Key : Medium Error
> >         [current] [descriptor]
> >         [   55.184733] sd 5:0:0:0: [sdf] Add. Sense: Unrecovered read
> >         error - auto reallocate failed
> >         [   55.184739] sd 5:0:0:0: [sdf] CDB: Read(10): 28 00 03 d0 00
> >         4f 00 00 40 00
> >         [   55.184748] end_request: I/O error, dev sdf, sector
> >         63963215
> >         [   55.184753] Buffer I/O error on device sdf1, logical block
> >         31981576
> >         [   55.184758] Buffer I/O error on device sdf1, logical block
> >         31981577
> >         [   55.184762] Buffer I/O error on device sdf1, logical block
> >         31981578
> >         [   55.184765] Buffer I/O error on device sdf1, logical block
> >         31981579
> >         [   55.184774] Buffer I/O error on device sdf1, logical block
> >         31981580
> >         [   55.184777] Buffer I/O error on device sdf1, logical block
> >         31981581
> >         [   55.184781] Buffer I/O error on device sdf1, logical block
> >         31981582
> >         [   55.184784] Buffer I/O error on device sdf1, logical block
> >         31981583
> >         [   55.184788] Buffer I/O error on device sdf1, logical block
> >         31981584
> >         [   55.184792] Buffer I/O error on device sdf1, logical block
> >         31981585
> >         [   79.656711] sd 5:0:0:0: [sdf] Unhandled sense code
> >         [   79.656713] sd 5:0:0:0: [sdf] Result: hostbyte=DID_OK
> >         driverbyte=DRIVER_SENSE
> >         [   79.656717] sd 5:0:0:0: [sdf] Sense Key : Medium Error
> >         [current] [descriptor]
> >         [   79.656736] sd 5:0:0:0: [sdf] Add. Sense: Unrecovered read
> >         error - auto reallocate failed
> >         [   79.656742] sd 5:0:0:0: [sdf] CDB: Read(10): 28 00 03 d0 00
> >         4f 00 00 08 00
> >         [   79.656750] end_request: I/O error, dev sdf, sector
> >         63963215
> >         [   79.656758] Buffer I/O error on device sdf1, logical block
> >         31981576
> >         [   79.656763] Buffer I/O error on device sdf1, logical block
> >         31981577
> >         [   79.656767] Buffer I/O error on device sdf1, logical block
> >         31981578
> >         [   79.656770] Buffer I/O error on device sdf1, logical block
> >         31981579
> >         [  103.968729] sd 5:0:0:0: [sdf] Unhandled sense code
> >         [  103.968731] sd 5:0:0:0: [sdf] Result: hostbyte=DID_OK
> >         driverbyte=DRIVER_SENSE
> >         [  103.968735] sd 5:0:0:0: [sdf] Sense Key : Medium Error
> >         [current] [descriptor]
> >         [  103.968754] sd 5:0:0:0: [sdf] Add. Sense: Unrecovered read
> >         error - auto reallocate failed
> >         [  103.968760] sd 5:0:0:0: [sdf] CDB: Read(10): 28 00 03 d0 00
> >         4f 00 00 08 00
> >         [  103.968768] end_request: I/O error, dev sdf, sector
> >         63963215
> >         [  103.968774] Buffer I/O error on device sdf1, logical block
> >         31981576
> >         [  103.968779] Buffer I/O error on device sdf1, logical block
> >         31981577
> >         [  103.968783] Buffer I/O error on device sdf1, logical block
> >         31981578
> >         [  103.968786] Buffer I/O error on device sdf1, logical block
> >         31981579
> >         [  235.691023] EXT3 FS on sdf1, internal journal
> >
> >
> >
> >
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