On Thu, February 12, 2009 7:11 pm, Keld Jørn Simonsen wrote: > On Thu, Feb 12, 2009 at 02:10:10PM +1100, NeilBrown wrote: >> Comments and testing very welcome. > > I would rather have functionality to convert raid10 to raid5. > raid1 should be depreciated, as raid10,n2 for all purposes is the same > but better implementation and performance, and raid10,f2 and raid10,o2 > are even better. Nobody should use raid1 anymore. That is a fairly simplistic view. raid1 supports --write-mostly and --write-behind which raid10 is unlikely ever to support. Certainly in many cases raid10 is just as good or better than raid1 though. Certainly a raid10->raid5 conversion for a 2-drive n2 configuration is trivial to arrange. Other conversions are less likely to be supported as they require significant non-trivial rearrangement of data. Thanks for the comment. NeilBrown -- 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