It's like that check engine light. The car does not stop.
THIS IS WELL DISCUSSED so I won't duplicate prior discussions and advise that you be ready for the fail.
I Keep getting the smart drive error telling me my Hard Drive is going bad on my Laptop. I run disk checks, etc. and no errors are found on the drive. Not sure how much stock I should be putting into the warning. I have had hard drives crash in the past and there were usually pretty good indicators that led up to them going bad.