Pekish, Something happened when you cancelled the process that seems to keep the optimizer from completing on you D: SSD. I would run the diagnostic test that is available in the Toolbox and if that is fine, I would run the Secure Erase to reset the SSD to a fresh state. Be sure to copy any files you need from the D: drive to another drive, etc, before you do the erase, otherwise they will be lost. The secure erase is the best way to completely clear and reset an SSD.
Thanks for the answer i am sure something happened when i stopped the process long time ago.
I am lucky the one that is not working is the DATA one and not the OS one so i can actually easily erase it without having to do much trouble. I guess you are right it's the best way since i already used the repair tool both the quick one and deep one and it didnt find any problem
Plus if i bench it the disk speed is perfectly in line to what i expect (similar to the other one)
I guess i will have to secure erese it before or later but since TRIM seesm to work just fine (I never notice any speed decay in mounths) i was just ignoring it.
Thanks again for the answer