Did you backup the disk and then run it to see if the prediction was correct?
My first instinct would be to do the backup (of course), but a close second would be "yeah, that's probably not so precise as to make me be quite that lucky today..."
I thought about running `stress -d` on it and letting it go for an hour/day but decided I'd rather just label the drive "BAD" and keep it in my junk drawer. Sometimes tasks don't require reliability and I'd rather not destroy it if I can get a few more uses out of it.
My first instinct would be to do the backup (of course), but a close second would be "yeah, that's probably not so precise as to make me be quite that lucky today..."