> Am i dreaming (it's well over 4am here :) ? Or is something like this > possible? Maybe not with a md personality, but by some daemon that would be > taking care of a dm map? such things are available commercially; I can't say how well they work. personally, I doubt that this kind of thing can be done well at a purely block level - I think that some file-level information would be beneficial, perhaps essential. but this is a layering-violating idea, and seems to rub a lot of people the wrong way. on the other hand, there is a seperate movement towards "object storage" systems, which is certainly a related idea. regards, mark hahn.