Guesstimate...
How long would it take to do a format ?
For a constant rotation speed, and number of heads/platters and assuming the data bus speed is unlimited, capacity increases as the square of linear density. If drive capacity increases x10 in the next 15 years as speculated, the read/write time will increase by at least SQRT(10) = x3.16. So if your format (or RAID rebuild) takes about 2 days to complete now, by 2032 it will take around a week.
Biting the hand that feeds IT
