On 01/25/12 09:08, Edward Ned Harvey wrote:

Assuming the failure rate of drives is not linear, but skewed toward higher 
failure rate after some period of time (say, 3 yrs)  ...

See section 3.1 of the Google study:

  http://research.google.com/archive/disk_failures.pdf

although section 4.2 of the Carnegie Mellon study
is much more supportive of the assumption.

  http://www.usenix.org/events/fast07/tech/schroeder/schroeder.pdf
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