the safe limit of 1TB HDD

Solution
From my experience, 500 GB from WD black edition are really long lasting drive (had one for more than 8 years now)

I've seen a little bit failure rate with 750 gb (WD and Seagate)
While 1 to 2 tb are even worse with any brands.

Right now im staying away from 3 -4 tb, because their are complains about data corruption and such.

I really hope they get Hd more reliable, because it's getting worse and worse .
Most new hard drives don't have higher failure rate do to there size. Most of the newer drives now have less platters then the older 500g drives. The issue with drives is buying one that don't end up having firmware issue (seagate) there 7200 drives had a bricking firmware bug. The cheap wd line drives people find have higher end of dying there blue/red/black line is fine.
 
From my experience, 500 GB from WD black edition are really long lasting drive (had one for more than 8 years now)

I've seen a little bit failure rate with 750 gb (WD and Seagate)
While 1 to 2 tb are even worse with any brands.

Right now im staying away from 3 -4 tb, because their are complains about data corruption and such.

I really hope they get Hd more reliable, because it's getting worse and worse .
 
Solution
Size is immaterial....drive failures are generally related to mechanical (i.e. bearing) issues....or design errors (i.e. firmware bug on the 7200.11's) ....speed also factors in....but so does other factors ..... the Raptors (10k) have among the highest failure rates, especially the older ones whereas the 15k drives from Seagate for the most part did very well.