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[Discuss] 1 offline uncorrectable sectors detected

On 08/20/2013 10:37 AM, Dan Ritter wrote:
> On Tue, Aug 20, 2013 at 10:16:32AM -0400, Jerry Feldman wrote:
>> I occasionally get the following message from smartd:
>> Offline uncorrectable sectors detected:
>>   	/dev/sdc [SAT] - 48 Time(s)
>>   	1 offline uncorrectable sectors detected
>> smartctl -H reports
>> ** sdc : SMART overall-health self-assessment test result: PASSED
>> This is my backup drive so it is not critical to my operation.
> What, really?
> Doesn't it suddenly become critical once whatever it is backing
> up fails?
Certainly. but a minor error like this is not a serious flaw since the 
sector has already been remapped. This is a case where it is reporting 
that 1 sector is bad. If this were an increasing number I would 
certainly replace the drive. So, if my backup drive failed, I would 
certainly replace it, but not immediately. If one of my primary drives 
in my RAID reported errors, I would replace it ASAP.

Jerry Feldman <gaf at>
Boston Linux and Unix
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