How long do external harddrives last before malfunctioning?

Want to know since I'm getting one for backup and stuff... was particularly interested in the Western Digital My Passport ones, either the elite or essential version. Anyway what's the usual lifetime of an external harddrive? Of course I won't go around smashing things with it, I would take good care of it.. (=

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  • Anonymous
    1 decade ago
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    Answer ID

    665

    How is drive reliability measured and what is the MTBF of WD drives?

    "We no longer measure the reliability of our drives using Mean Time Between Failure (MTBF). Our current drive reliability is measured using Component Design Life (CDL) and Annualized Failure Rate (AFR). The Component Design Life of the drive is 5 years and the Annualized Failure Rate is less than 0.8%".

    Source(s): A+ Certification, ITIL certified http://support.wdc.com/product/kb.asp?lang=en click knowledgebase and enter the AnswerID 665
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