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Typically, after a disk reaches 5 years of power-on time, the disk is more likely to fail. Some drives can still work perfectly fine even after 43,800 hours had passed, and some have even reached 10 years or more without any problems.
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Google tested over 100,000 consumer grade serial and parallel ATA hard disks, finding evidence that S.M.A.R.T. attributes like POH played a heavy role in device failures.
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attributes (originally known as
IntelliSafe, before its introduction to the public domain on 12 May 1995, by the computer hardware and software company
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Power-on hours is intended to indicate a remaining lifetime prediction for hard drives and
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It is used to predict drive failure, supported by manufacturers such as
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Pinheiro, Eduardo; Weber, Wolf-Dietrich; Barroso, Luiz André (2007).
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The length of time that electrical power is applied to a device
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125:"The Emergence of Reliability-Prediction Technology"
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130:(Press release). 12 June 2001. Archived from
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255:: 17–29.
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135:(PDF)
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
