I have always wanted to do this. I would much rather manage redundancy and error correction at the application level, so that the application has a good idea o

I have always wanted to do this. I would much rather manage redundancy and error correction at the application level, so that the application has a good idea of what data is being lost well in advance of it being gone for good. The idea of having some chip with software that I've never seen in charge of this seems crazy to me. You can look at how much data people lose on SD cards (every Raspberry Pi user will tell you they "go bad"); most of it is not loss of content on flash, but corruption from interrupting the internal MCU at a bad time. Remove that and use proper transactional writes, and they'd probably never instantly go bad. But, random write benchmarks would not look as good.