I read a lot about SSDs and I am interested in them for server use. My biggest concern is their reliability. A lot of writes shortens their life span. I can mitigate this problem if I can run some kind of diagnostics on a regular basis on the SSD or if the SSD can automatically warn the OS that its reliability is reaching a critical level. Think of this as S.M.A.R.T or software like SpinRite for SSDs.

Does anything I mentioned exist now? Which kind/brand of SSD does this?

I don't mind swapping out a tired SSD for a newer one once a while. I am pretty sure that SSDs life is calculated in years and not in few months? For me, the improved performance will pay for the SSD over and over. I am planning to use plenty of RAM as well.