On Mon, 2010-07-26 at 01:42 +0200, Milan Broz wrote: > Device-mapper (and here dm-crypt too) always calculate size in 512b sectors, > but is also device topology aware (it honors alignment/optimal io size for 4k hw sector). > > IOW sector in linux block level is always 512b but devices with 4k will work > without problems (and with optimal aligned IOs) Good to know :) > You just cannot have dm-crypt using atomic crypto 4k units currently, it is just > low-level hw sector size. > (Maybe in future there could be option for that but it requires new LUKS header flags > at least because such mode is incompatible.) But that would also require support in the block layer and dm right? Cheers, Chris.
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