Thanks!
So, the real formula is R(T) = exp(-T/MTBF). Nice to know, I'm calculating all odds right now. :)
Just to add, by this formula there is 64% chance that my disk will survive 100 years, and 80% chance that it will survive 50 years. Quite long, perhaps that is the reason why it cost so much.
Seagate say that HDD have MTBF of 2M hours. By math, 2M h = cca. 228 years. Does this mean that drive will last 228 years working 0-24h?
Seagate also say that HDD have AFR of 0.44%. So, if I get this right, for first year is 0.44%, for second 0.88% and so on. By this "half-life" of HDD when...