They are apparently 'pending' until they are next read, a successful read should decrease the Current Pending Sector Count (and presumably a failed read should trigger a remapping?).Īccording to the SMART data no sectors have yet been remapped, the Reallocated Sectors Count is zero (the normalised worst value is 200), and interestingly the Read Error Count is also zero (the normalised worst value is 200), which is bizarre if I have 6 'flaky' sectors? However, the Write Error Count has been positive in the past (the worst normalised value is 149) and the Uncorrectable Sector Count has also been positive in the past (the worst normalised value is 198) but for an old drive I don't see those as a particular problem? But for the CrystalDiskInfo Caution indicator I don't see anything of major concern with this drive, especially given its age? These sectors (and I appear to currently have 6) have apparently become unstable and need to be remapped into the reserved sectors. CrystalDiskInfo shows a caution for this drive because of the Current Pending Sector Count Value.Ĭurrent Pending Sector Count is a measure of how unstable the drive has become and is one of the key indicators of drive health. I use it as a media drive but there's nothing on there that isn't also in at least two other places. It used to be an external drive but has been an internal drive in my PCS PC for the last 12 months. The drive in question is a 3.5" 1.5TB HDD that I've had for probably close on 8 years (at a guess). A couple of days ago I came across something unusual which I thought might be worth sharing to see whether any SMART people (see what I did there?) might know more than I about what might be going on.
I keep a fairly regular check on the SMART data on my drives to try and predict failures ahead of time.
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