Instead, they are intended to indicate "how good" or "how bad" that metric's value is on a scale. are normalized qualitative values, that is they don't indicate the actual number of sectors, etc. The "Current", "Worst", and "Threshold" values reported by S.M.A.R.T. To clarify (since this is one of the top responses on Google for this question, but doesn't actually answer it very well, IMHO): Value of this attribute indicates the total number of uncorrectable Parameter and indicates the quantity of uncorrectable errors. Samsung, Seagate, IBM (Hitachi), Fujitsu (not all models), Maxtor, Urgent data backup and hardware replacement is recommended. Degradation of this parameter may indicate imminent drive failure. In this particular case, I would keep an eye on the value and if it continues to increase then replace the drive: The raw value of this attribute indicates the total number of uncorrectable errors when reading/writing a sector. You need to look at the raw value ( 8) in this case. Why is Uncorrectable Sector Count being displayed as caution? Why is Uncorrectable Sector Count being displayed as caution if various other stats with the same value and threshold aren't? How can a lower-than-threshold value occur with a zero threshold? Is this a sign of imminent drive failure or is the tool merely miscalibrated?ĮDIT: Seagate's SeaTools utility has reported that SMART is OK, but it didn't say anything else. Additionally, various other stats read that 100 is both their current and worst while not being marked "caution". The value of the Uncorrectable Sector Count is 100, which is also its worst-recorded value, and the stat has a threshold of zero. I know that some of their actual values vary by manufacturer, and I've also read that if a current value is below a threshold, that statistic has failed. I'm not sure what to make of the Current, Worst, and Threshold values. In short, the Uncorrectable Sector Count count is 100, and this is a "caution"-level problem on the drive. I downloaded CrystalDiskInfo, and the pertinent information is reproduced below: It spends several minutes at 100% usage when I first turn it on since I installed Windows 10, and yesterday it reported a corrupted Recycle Bin. S.M.A.R.T.I have a 2TB internal hard drive that might be failing. + Intel(R) 8 Series Chipset Family SATA AHCI Controller Here's the result according to CrystalDiskInfoĬrystalDiskInfo 6.1.14 (C) 2008-2014 hiyohiyo I can no longer use the Active DiskMonitor, it says that there is no computer connected and I think it means the problem got spread. (DF) Load/Unload Retry Count 100 100 0 0 ok (C7) Interface CRC Error Count 100 100 0 0 ok (C6) Offline Uncorrectable 100 100 0 0 ok (C5) Current Pending Sector 100 100 0 8 warning (C4) Reallocated Event Count 100 100 0 0 ok (B8) End To End Error Detection 100 100 97 0 ok (09) Power On Hours Count 95 95 0 2294 ok (08) Seek Time Performance 100 100 40 0 ok (05) Reallocated Sector Count 100 100 5 0 ok (02) Throughput Performance 100 100 40 0 ok (01) Raw Read Error Rate 100 62 62 0 failed
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