Quote Originally Posted by canthearu View Post

I can't seem to keep the vertex 4 out of storage mode. Secure wipe only helped for half an hour or so, then performance dropped again. I'll try a firmware reflash followed by another secure wipe. See if that helps.

Strange thing is that it ran fine for 3 days .....

If I can't get this working right, I may need to abandon breaking this V4 ... which would mean I would need to go find another victim in its place.
Try increasing the OP by 5% steps and see if it can survive longer. SLC based drives also need alot of overprovisioning to behave very fast. 128GB with 50% overprovisioning is like a 64GB SLC with little to nothing overprovisioning.