>>101431354
Holy retard, what a normie!
And I thought eight drives was insane.
Assuming 99.9% reliability:
0.999 ^ 8 = ca. 99.2% no failure --> 8 out of every 1000 fails
0.999 ^ 30 = ca. 97.1% no failure --> 29 out of every 1000 fails
That's almost quadrupling the expected failure rate!
(It is coincidence it seems to linearly grow, it's obviously exponential)