Help interpreting SMART values


  1. Posts : 7
    Windows 7 Ultimate x64
       #1

    Help interpreting SMART values


    So I just lost 2 Western Digital 1TB HDDs (WD10EARS and WD10EADS) due to unknown causes. One went dead dead, the other one just nuked my Win7 partition and started arbitrary denying access to the other, data partition. Weird as hell since SMART never indicated anything wrong, they simply suddenly went kaput.

    Now I got this Seagate drive and the SMART shows everything as "Green\OK", but it shows some really high numbers for RAW values (all other attributes are at 0 and 1 for High Fly Rates).

    What's the meaning of those RAW values? Thanks in advance.

    Code:
    Model: ST31500341AS
    Firmware: CC1H
    LBA: 2930277168
    
    Report By: HDDScan for Windows version 3.3
    Report Date: 21/06/2011 09:43:20
    
     001 Attribute Name: Raw Read Error Rate  Value:117 Worst:100 Raw(hex):00000008BF-7257 Threshold:006 
    
     007 Attribute Name: Seek Error Rate      Value:061 Worst:060 Raw(hex):0000000016-2D2D Threshold:030 
    
     240 Attribute Name: Heads Flying Hours   Value:100 Worst:253 Raw(hex):0088220000-001B Threshold:000 
    
     241 Attribute Name: Total Host Writes    Value:100 Worst:253 Raw(hex):0000009E9A-B7D9 Threshold:000 
    
     242 Attribute Name: Total Host Reads     Value:100 Worst:253 Raw(hex):0000007DD5-A27C Threshold:000
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  2. Posts : 6,668
    Windows 7 x64
       #2

    Are you referring to the hex data?
    Hexadecimal - Wikipedia, the free encyclopedia
    It's basically just a basic computer code.
    The link should explain it a bit.
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  3. Posts : 7
    Windows 7 Ultimate x64
    Thread Starter
       #3

    I know what Hexadecimal values are, question is, why the discrepancy in the report?
    At first I thought they were addresses and not values, but that doesn't explain why every other item is at 0 or at an explainable low value.

    For example, "Power-ON Hours Count" presents a RAW value of "1E" (as in, 0000000000-001E) which is about 30 hours of use, it's about right because I got the HDD on Saturday (18) and basically only used it to install\update\configure Windows7.

    I'm sorry if I sound a little paranoid, I'm really not in the mood to lose another HDD in such a short period :P
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  4. Posts : 6,668
    Windows 7 x64
       #4

    Unless the drive is a seagate 7200.11 model, I wouldn't be terribly concerned.
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  5. Posts : 7
    Windows 7 Ultimate x64
    Thread Starter
       #5

    Good God, why the hell did you say that!? Hahaha.

    Indeed it is, a Seagate 1.5TB 7200.11, ST31500341AS
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  6. Posts : 6,668
    Windows 7 x64
       #6

    the 7200.11's had problems early on, I think it's mostly been fixed now.
    Seagate fixes 7200.11 drives--except when it doesn't | Crave - CNET
    ^^old news article on them.
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  7. Posts : 9,582
    Windows 8.1 Pro RTM x64
       #7
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  8. Posts : 7
    Windows 7 Ultimate x64
    Thread Starter
       #8

    @Dwarf

    Wikipedia says:
    Lower raw value is better
    Excuse me gentlemen, I think it's better for me to start pulling an extra image of the Win7 partition, just in case...
      My Computer


  9. Posts : 7
    Windows 7 Ultimate x64
    Thread Starter
       #9

    Ok, last update on the matter.

    Seems like it's normal for Seagate drives to present those high numbers and they do not correspond to the actual health of the drive (although HDDLife is accusing a health of 47% due to those high values).
    So confusing ;_;
      My Computer


 

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