SMART high read error count etc. reason for concern?

  1. Posts : 582
    Windows 10 Pro 64 bit 19044.1706

    I recently had one faulty disk. With my luck, this will die too... I did HDTUNE error checking test and deep scan with checkdisk 8 hours. Both found 0 % errors. But still. Here is SMART, is there anything of concern. My last disk had status good too and then it got corrupted and probably dying given other symptoms.

    This is from chkdsk:

    Microsoft Windows [Version 10.0.19042.685]
    (c) 2020 Microsoft Corporation. All rights reserved.

    C:\Windows\system32>chkdsk f: /b /v
    The type of the file system is NTFS.
    Volume label is Local Disk.

    Stage 1: Examining basic file system structure ...
    128256 file records processed.
    File verification completed.
    Phase duration (File record verification): 4.26 seconds.
    113565 large file records processed.
    Phase duration (Orphan file record recovery): 0.00 milliseconds.
    0 bad file records processed.
    Phase duration (Bad file record checking): 0.15 milliseconds.

    Stage 2: Examining file name linkage ...
    112 reparse records processed.
    129328 index entries processed.
    Index verification completed.
    Phase duration (Index verification): 1.69 seconds.
    0 unindexed files scanned.
    Phase duration (Orphan reconnection): 8.25 milliseconds.
    0 unindexed files recovered to lost and found.
    Phase duration (Orphan recovery to lost and found): 0.75 milliseconds.
    112 reparse records processed.
    Phase duration (Reparse point and Object ID verification): 1.36 milliseconds.

    Stage 3: Examining security descriptors ...
    Cleaning up 79 unused index entries from index $SII of file 9.
    Cleaning up 79 unused index entries from index $SDH of file 9.
    Cleaning up 79 unused security descriptors.
    Security descriptor verification completed.
    Phase duration (Security descriptor verification): 12.33 milliseconds.
    537 data files processed.
    Phase duration (Data attribute verification): 0.17 milliseconds.
    CHKDSK is verifying Usn Journal...
    8641456 USN bytes processed.
    Usn Journal verification completed.
    Phase duration (USN journal verification): 74.62 milliseconds.

    Stage 4: Looking for bad clusters in user file data ...
    128240 files processed.
    File data verification completed.
    Phase duration (User file recovery): 7.77 hours.

    Stage 5: Looking for bad, free clusters ...
    43693252 free clusters processed.
    Free space verification is complete.
    Phase duration (Free space recovery): 0.00 milliseconds.

    Windows has scanned the file system and found no problems.
    No further action is required.

    3815429 MB total disk space.
    3644431 MB in 7187 files.
    2848 KB in 538 indexes.
    0 KB in bad sectors.
    326839 KB in use by the system.
    65536 KB occupied by the log file.
    174773012 KB available on disk.

    4096 bytes in each allocation unit.
    976750079 total allocation units on disk.
    43693253 allocation units available on disk.
    Total duration: 7.77 hours (27992197 ms).

    Attached Thumbnails Attached Thumbnails SMART high read error count etc. reason for concern?-4tb-disk-smart.png  
    Last edited by empleat; 19 Feb 2021 at 15:24.
      My Computer

  2. Posts : 18
    Windows 11 Pro

    Try with another sata cable and port, maybe use something clearer to read like crystal diskinfo in decimal values
      My Computer

  3. Posts : 582
    Windows 10 Pro 64 bit 19044.1706
    Thread Starter

    3 disks (1 new) WORST VALUES in SMART!!!

    OldMX said:
    Try with another sata cable and port, maybe use something clearer to read like crystal diskinfo in decimal values
    Yeah maybe. I don't know if I will be even able to disconnect sata cable, now I am thinking. Because it points towards RAM and it is pain to plug RAM on this motherboard... I will try it tomorrow perhaps. I also notice 17k DPC latency spike (for sata driver) today in latencymon. Something is up.

    This was referred to me by support. I don't feel like doing 8 hour test again any time soon

    - - - Updated - - -

    I switched cable to brand new and values are still worst, reallocated sectors 200 oof. But i didn't used it yet, so it may change over time dunno... Could this also be, because my disk is almost full long time? It matters for ssds, but not sure if this matters for hardisks. Otherwise fragmentation is only 10% now, but was greater for a considerable time.

    Aaaah I just lost one 3TB disk. Don't tell me this is dying too. It is 4TB. Re-allocated sectors 200 max value, while thredhold is 140... I copied some files from bad sectors, there were only 0.2% bad sectors on 3TB disk. Could this do anything to the 4TB disk? I asked but got no asnwer... And I read you should backup data. I don't think that could do anything, but dunno. Because it is not issue with a data, but with hardware of the disk.

    If second disk is dying too, that's just great... I read that maybe by low level formatting, there is chance you can fix disk. But I have nowhere to backup data.


    I read bad sata cable shouldn't be able to physically damage disk, only at software level. I also read re-allocated sectors can't be repaired both by software, or by hardware. There is value 200 (worst) that's unfortunate. I tried yet chkdsk /r. To fix bad sectors caused by software error and to fix filesystem issues. Didn't change anything on smart, as I expected. But I read even software errors can contribute to disk dying. Not long time ago I did chdks and hdtune 8 hour test for error checking and it found 0% bad sectors. But more then 50% of smart are worst values - doesn't look good. While it reports good health and lifespan remaining 100%. I will try other programs too see, this is ssd toolbox...

    Also I read worst smart values doesn't have to mean anything. Hope it will work awhile yet, this disk is only 2 years old...

    EDIT3: it is really weird all my disks, expect NVME - I think. Have worst values for everything in SMART. And My Kingston 1TB SSD is new. I wasn't using it almost at all. Yet it has all values worst in SMART!!! Second picture is my NVME, it should be fine. But SMART values for NVME differs a bit - don't know what they all mean! NVME is also new! And my 4TB disk only 2 years old.

    I thought maybe, because I was using vacuum to clean dust in computer, it could damage my disks. But I wasn't using it in my new computer, when I got 1TB SSD. And no disk ever died on me until now - strangeeeeeeeeee...
    I didn't know it until couple months ago and I stopped using it. But again I don't think that's it, because I didn't use it on my new SSD, yet it has all values in smart worst.

    I know SMART values aren't 100% accurate and disk can still last quite some time. It is just weird all my disks have almost all SMART values worst!!! Also read SATA cable shouldn't be able to damage disk. I don't know, what it could be. You have to agree, that it is big coincidence, that 3 disks have worst values at the same time. And even new SSD! But what it could be??? Really perplexing.

    Could copying data from bad sectors damage anything? I don't think so, I read some articles, even they didn't directly answer this, they just said to backup data and it doesn't make sense. If you have some bad hw sectors and didn't know about it, it would damage instantly other disk, don't think it works like that. But I am so paranoid, I have lately insanely bad luck, don't even know what is happening anymore...
    Attached Thumbnails Attached Thumbnails SMART high read error count etc. reason for concern?-kingston-ssd.png   SMART high read error count etc. reason for concern?-nvme-smart.png  
    Last edited by empleat; 19 Feb 2021 at 15:24.
      My Computer


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