What are peoples thoughts on this? I have, currently, four hard drives. Three of the four have bad sectors according to the Linux Disk utility. Now two of them, one has 11 bad sectors the other has 22. The third however has -1 bad sector (-1?) The one with 22 bad sectors, the Linux Disk utility had previously told me that it was failing and needed to be replaced. Now with newer versions of the Disk Utility it is all green and fine. It just says a few bad sectors. All my hard drives work fine and I am not seeing any increase in bad sectors let alone a fast and large increase in bad sector numbers.
Hard drives contain millions of sectors. It is very normal for some of these sectors to be bad sectors, even when the drive is first manufactured.