Paul Heinlein <heinlein@...> writes:
On Mon, 27 Jan 2014, Bob Hepple wrote:
I've got a 1Tb USB disc that appears to be dying - eg it took about 10 days (!) to run 'badblocks -nsv /dev/sdc' and it only did less than 2% in that time. Read access became _really_ slow.
197 Current_Pending_Sector 0x0032 192 192 000 Old_age Always
1423198 Offline_Uncorrectable 0x0030 196 196 000 Old_age Offline
700200 Multi_Zone_Error_Rate 0x0008 001 001 000 Old_age Offline
793265These numbers are all bad, really bad. Regardless of the overall PASSED result, SMART is telling you that the disk is failing. See, e.g., http://en.wikipedia.org/wiki/S.M.A.R.T.
Thanks for that. I kinda wonder about the 'PASSED' in light of this - looks like we need to go through the smartctl output with a fine toothcomb to make it valuable.
The disc was already headed to the dump as it was obviously failing, but I would have liked to be able to use smartctl to predict failures. When the output is so hard to read, I doubt it'll happen.
For anyone following this, I found http://sourceforge.net/apps/trac/smartmontools/wiki/FAQ quite good reading. Also http://smartmontools.sourceforge.net/badblockhowto.html