Originally Posted by JDub8
What am I reading.jpg
In my post, I quoted this:
There’s a three-year warranty, and a fairly high MTBF (mean time between failures) of 800,000 hours.
Then I did the math to find out how many years 800,000 hours is.
800,000 hours / 24 hours per day = 33,333 days.
33,333 days / 365 days per year = 91 years.
Yes, it is a little off since I did not take the extra day of the leap years into account. It is close enough to say the MTBF is 91 years. I simply found it interesting to convert hours to years. Makes the hours look MUCH longer when expressed in years (even though they are the same length of time).
Of course, there is only a 37% chance of any one device meeting the MTBF (due to the way it is calculated). This is due to the initial failures and the end of life failures (as shown in the bathtub curve).
EDIT: As an aside, the WD Reds have 1,000,000 hours MTBF, which is 114 years.