Smart test fail but all data still fine without error

jimmytws

Honorable
May 28, 2012
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10,510
hello
3 weeks ago i had this 1 TB WDC Green 10EARS from my computer office. originally the disk belong to My Book Essential. and for some reason the technician decide to attached it directly to my office computer. the disk work fine for almost a year until they decide to brought me a new disk, and give away the WDC Green to me for personal use.

so i decide to attached it to my home PC, wipe the disk and create 3 partition im planning to have the disk as a storage.

unfortunately i didnt know that the disk cant be formatted under XP sp3 without the alignment tools. and from there i start to transferring a whole bunch of data until at one time the windows delayed write warning shows up.
and then i turn of the PC and restart. the windows automatically scan the disk. and manage to enter the windows. but in 20 minutes suddenly the disk shows "disk falling" message. and when i restart the PC, suddenly this "SMART found bad" appear on Bios while booting. and further SMART check shows "reallocated sector count" error.

and from there i re-partition & re-format the disk but now under Win 7. and altough i already did the full diagnostic with the windows check disk which took me almost 10 hours yet the smart fail still there. and the the disk fail warning still pop up.

friend of mine advise me to zero the disk using WD data lifeguard diagnostic and re format with WD quick formater . and i did, it pass the test, the format went well but the the SMART still found bad.

well despite all that i copy the data back to the disk. if the disk dying, well, so be it i guess, i got it for free anyway.

now what it comes strange to me is if i ignore "the disk falling" warning. i can still acces all of my data that i copy. and i found the unharm. i still can watch the movie, listening to the music, no photo that erorr. and it had been goin for 3 weeks. i try to copy all my data back to other disk it went find. no slowing in performance, no error in transfer. the files seems fine. i fall asleep yesterday and leave my PC turn-on a whole night played 8 hours of movie that directly play from the disk. but yes, its still fine.

my question is (sorry if this sound ridiculous) is there a possibility that SMART warning could be a false alarm?
i didnt run the surface test yet. dyou guys thing i should do that? any tools suggestion?


well guys thats it. sorry if its to long 😀 and a big sorry for my english. thanks in advance

Jimmy
 
The smart data is not wrong, it is trying to warn you the drive is on the way to failing, not that is has actually failed as you mentioned you can still access the data. Basically just use the drive with caution, and be advised that any data on it may become completely inaccessible at any point in time.

This question is asked frequently here, and people like to argue the smart data is wrong since the drive is still working, but that isn't fully understanding what the data is saying.
 
The company didn't just decide to give u a new disk and donate the old one without a reason. (i'm sure they already know the drive is failling) 😀

SMART disk doesn't lies, but it cannot be reset, if the error is because of unaligned data in xp it will keep recorded.

The best bet is DL diagnostic tools from WD and use it full scan the disk...
If it pass the factory diagnostic tools than it bigger chance it will not failling soon (but i won't keep important data there and backup daily)
 

As said above, SMART is about failure prediction. If you download a tool like HDTach, you can take a peek at SMART registers which might give you an idea of why SMART is complaining.

As for which tool to use to confirm whether or not SMART is right, that would be the manufacturer's own RMA/diagnostic tool. For Seagate, that would be SeaTools, for WD it would be Data Lifeguard.