What to do with uncorrectable sector errors?
In the smart hard disk there was a deterioration of the Uncorrectable Sector Count parameter I provide screenshots in aida64, CrystalDiskInfo, victoria. Please tell me what to do, is it already pouring out?
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Here I made tests of Victoria 3.5 from under DOS, HDD regenerator v2011 and Data Lifeguard Diagnostic for Windows from Windows here screenshots:
I do not understand the program Data Lifeguard Diagnostic for Windows smart normal and tests too. I didn't understand anything, I got different test values and how to understand it, what's wrong with the hard disk? And also smart in Data Lifeguard Diagnostic for Windows is generally different from others.
2 answers
The S. M. A. R. T. "Uncorrectable sectors count" parameter shows the number of sectors that an uncorrectable error occurred while reading/writing and that were added by the disk firmware to the reassignment queue. Usually, after a full disk check in Victoria with the "Remap" option enabled, its value should become zero and the sectors in the queue will either be marked as normal (if the error was an accident), or recognized as damaged and reassigned (the value of the parameter will increase "Reallocated sectors count").
A non-zero value of the parameter, in itself, does not unambiguously indicate the failure of the hard disk, but is one of the signs of this. For example, Acronis assigns it a weight of 2 when determining the health of the hard disk. If this number is constantly growing, or in addition to it, a full disk check shows many damaged or slow-read sectors, it is highly likely that the disk fails and needs to be replaced. For after making the final decision to declare the disk unusable, it is advisable to perform a full check in several programs, including the manufacturer's proprietary utility-for example, Data Lifeguard Diagnostic for WD disks.
C6 Offline Uncorrectable Sector Count - the number of uncorrected errors, that is, serious damage to the disk surface. There are such errors when there is no space in the backup zone of the disk for reassigning sectors. They can also appear in case of a sudden power outage at the moment when the disk writes data - these are the so-called "software bad blocks". If their number is one or two, and the other parameters concerning the disk surface are normal, then you should not worry. If if it is too large, then the data must be saved http://fobosworld.ru/jelezo/tehnologii/54-smart-tehnologiy So the HDD still needs to be changed, 2 years only worked.