LogFAQs > #948137810

According to the only study I could find on hard drive life spans, 6 years is fairly pretty old for them. They're study only goes for 4 years, but they think by year 6 half of all hard drives will have died. Of course they are a data backup provider so it's in their interest to make people think their data is more at risk then it is:

https://www.backblaze.com/blog/how-long-do-disk-drives-last/