Wikipedia’s list of known SMART attributes lists 0xB8 as End-to-End error / IOEDC described as:
This attribute is a part of Hewlett-Packard’s SMART IV technology, as well as part of other vendors’ IO Error Detection and Correction schemas, and it contains a count of parity errors which occur in the data path to the media via the drive’s cache RAM.
(I was unable to immediately find an official reference of SMART attributes for your particular drive, so will assume that the above is correct. You may want to spend a bit of time searching for a specific reference which will tell you exactly what the meaning (and interpretation of the raw value) of SMART attribute 0xB8 is on your particular drive, to verify the below. Seagate should be making such a reference available.)
Parity errors can be caused by hardware being operated too close to the limit of its operational envelope (overclocking), but a far more plausible explanation would appear to be poor connectivity somewhere.
The first thing I would do is check the cabling. Replace the cabling from the controller all the way to that drive (including any breakout cables) and see if the problem goes away.
Note that parity errors are non-critical. This is a parity error which is being detected, and thus corrected for (most likely by throwing out the damaged data and requesting a re-read from the original source). SMART may read it as FAILED because the drive has seen too many such errors, but at most, detected parity errors degrade performance. As long as this is the only error that the disk is reporting, I wouldn’t worry too much.
It’s also worth noting that the Seagate DM series drives are a poor fit in general for RAID because they don’t support SCTERC. As long as they are working properly this won’t be a problem, but if you hit an unreadable sector, the drive is going to keep trying to read it for a very long time even though (depending on your RAID level) redundancy may exist elsewhere to allow it to be reconstructed much quicker. That applies to any RAID level other than RAID 0 (which is striping without mirroring or parity).
Внешний HDD Seagate 500GB 5400rpm 8MB [ST905004EXD101-RK] 2.5″ USB 2.0
HD TunePro. В активном использовании около двух лет. Почти круглосуточно стоит на раздаче и скачивании торрентов. Никаких проблем в использовании не наблюдается. При проверке HD TunePro
наличие ошибок не фиксирует, но состояние здоровья –
failed.
А именно, атрибут SMART B8 (End-to-End error): значения обнаружения ошибок в канале передачи данных внутри драйвера. Данный атрибут — часть технологии HP SMART IV, это означает, что после передачи через кэш памяти буфера данных паритет данных между хостом и жестким диском не совпадают (из педивикии).
Не могу сказать точно, когда появилась эта ошибка, я обнаружил её два месяца назад. Полёт нормальный, но никак не могу понять, в чём, собственно, трабла? Объясните, pls, простым языком, что значат эти “несовпадения” данных? Эта ошибка действительно настолько критична? Чем она могла быть вызвана и чего мне теперь ждать от диска и от данных?
У меня были подозрения, что это может быть связано не с самим диском, а с глюками USB. Тогда, что послужило их причиной, например, и чем они отличаются от ошибок, возникающих при передаче данных по внешнему интерфейсу атрибута C7, который не отмечает на моём диске ни одного сбоя?
Кстати, на HDD WD640 [WD6400AAKS] во внешнем боксе Agestar [CCB3A] атрибута B8 вообще нет:
Почему?
thx
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SSDs & Data Storage
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Annoying SMART Failure.
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Thread starterWarMace
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Start dateFeb 4, 2009
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#1
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On every boot I get a Drive failure warning.
HD Tune 2.55 says: (B8) (unknown attribute) Failed
There is no documentation that I can find to explain what this actually means, and not only is there no firmware fixes that I can find, Samsung does not even appear to reconise F1 as a product they sell on their support site.
A HD Tune Error Scan comes up clean.
Am I missing something? Is there anything I can do to further diagnose this error?
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#3
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Edit: seems it is still under manufacturer warrentee, started an RMA.
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Don
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[H]ard|Ware
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SSDs & Data Storage
That is indicating the hard drive is failing or already has failed and needs to be replaced. If the PC is functioning, then you are in luck but it will not last, and probably should quit using the PC. Prepare to replace the drive. Run the Diagnostics routine to verify.
To run the Diagnostics routine, Start tapping the Esc key BEFORE starting the PC and then press the start button.
Keep tapping the Esc key until a popup menu shows. Then pick Diagnostics from that popup menu, F2.
Report back with the results.
I’m not an HP employee.
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