My SATA drive is from 2009 and has been under some circumstances where it's not "Pleasant" for the drive, such as blackouts (lots of them). On Ubuntu 12.04 SMART reported 4029 bad sectors. I often do a zero-fill on the drive and I read that it reallocates those bad sectors. So, if it do a reallocate, why "a failure is imminent"? Why should I worry?
Also, any tips on how to prevent this will also help!