On Wed, 16 Dec 2009, Marco Peereboom wrote: > The issue isn't the 4k blocks. The issues are the 512 bytes constants > or 1 << 9 or DEV_BSHIFT or DEV_BSIZE that are all over the tree. I > know for a fact that softraid is busted with these devices and you can > bet that the wrong assumption has been made in other places as well. > > Making these drives work will be painful. But we could start with the > 520 byte ones ;-)
520 byte blocks would be good for a softraid crypto mode that calculated a 128-bit MAC per sector - it could stash it along with a 512 byte block without needing to stride :) -d
