Mailinglist Archive: opensuse (3109 mails)

[David Brodbeck <gull@xxxxxxx>]

Greg Freemyer wrote:
> I don't know about that, it is amazing how often disk drives fail
> shortly after the warranty expires.

I seem to recall the MTBF figure was usually substantially longer than
the warranty.  I was going to verify that, but no one seems to quote
MTBF anymore for hard disks -- instead they quote error rate, start/stop
cycles, and annualized failure rate.

> 
> Actually, the Google paper on this is very interesting.
> http://216.239.37.132/papers/disk_failures.pdf
> 
> To grossly simplify, commodity disk drives fail at a rate of roughly
> 10% per year starting in the 3rd year, independent of activity,
> temperature, etc.

And yet Seagate claims an annualized failure rate of only 0.34% for
their drives.  Someone's skewing their figures, and I suspect it isn't
Google.


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