Not sure I follow.... the fast-write space in a non-TRIM device with GC is just some "extra" blocks (or whatever) that are kept aside and now and then swapped o

Not sure I follow.... the fast-write space in a non-TRIM device with GC is just some "extra" blocks (or whatever) that are kept aside and now and then swapped out for other in-use blocks (as far as the drive firmware is concerned - the OS has no idea this is going on) - and then the spare blocks are wiped for fast write again, then used when writes are requested. Really appreciate if you could shed any more light on why OSX would be better at this.. not sure I can picture this.