[GLLUG] Disk issue?

[J Neveau]

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
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.egr.msu.edu/mailman/public/linux-user/attachments/20120420/d3c25d8f/attachment.html>