On Thu, 22 Feb 2007, Neil Brown wrote: > On Wednesday February 21, jengelh@xxxxxxxxxxxxxxx wrote: > > Hello, > > > > > > > > are there any plans to support reshaping > > on raid0 and raid10? > > > > No concrete plans. It largely depends on time and motivation. > I expect that the various flavours of raid5/raid6 reshape will come > first. > Then probably converting raid0->raid5. > > I really haven't given any thought to how you might reshape a > raid10... i've got a 4x250 near2 i want to turn into a 4x750 near2. i was considering doing straight dd from each of the 250 to the respective 750 then doing an mdadm --create on the 750s (in the same ordering as the original array)... so i'd end up with a new array with more stripes. it seems like this should work. the same thing should work for all nearN with a multiple of N disks... and offsetN should work as well right? but farN sounds like a nightmare. if we had a generic "proactive disk replacement" method it could handle the 4x250->4x750 step. (i haven't decided yet if i want to try my hacky bitmap method of doing proactive replacement... i'm not sure what'll happen if i add a 750GB disk back into an array with 250s... i suppose it'll work... i'll have to experiment.) -dean - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
