Not a subscriber, so please include on answers..
I love the smartctl utility, but searching online, I find no way to actually MODIFY any of these values. It would be amazing to just increase the thresholds and just change/reset counters... For example, on a 400GB disk, I don't mind losing even 200MB to bad blocks.. the way things are right now, I 'lost' a drive due to excessive 'raw read error rate', basically a bit more than the 'threshold'.. but I am convinced the HD is still OK! It's just that the firmware is blocking it's usage. I would like a way to modify the threshold (first choice), or reset the occurrence counters to zero (second choice). This in my view is called Designed Obsolescence (see http://www.storyofstuff.com) :)