After this, it turns out that they have (almost) mastered the art of predicting HDD failures.
The 3TB (backup/non-essential) HDD in my little work server has died, literally 6 weeks after the 2 year manufacturer warranty ran out ....
I've struck WD off my list of HDD suppliers for the next 5 years, which is basically when I expect that HDDs will be completely replaced by SSDs. (WD will still be on my $hitlist permanently though).
Smart notification that (38+ bad sectors had been relocated) by the monitoring software was issued 10 minutes after I'd rebooted the server after the HDD failed and the server crapped itself when the HDD stopped responding to requests.
Thanks WD, smart, microsoft
It's made my day.