I have read some specs for both IBM 60GXP and 120 GXP drives.
Here we go:
Projected term of life:
5 years when operating in average desktop
i.e. average 333 POH a month (power-on hours).
It means roughly 10 hours a day. :?
Yes, it does not look for the servers. It means 5/2.5 = 2 years of projected life for the servers.
Now, total hours are 333 a month * 12 months * 5 years=roughly 20,000 hours.
From the Western Digital site, for WD 600BB, the component design life is 5 years too. However, the MTBF is 500,000 POH.
I don't have a clue what MTBF is, but 500,000 POH is 25 times more than 20,000.
For the WD1200JB they do not tell POH at all, just mention 5 years.
What do you think about all these numbers?