On Tuesday August 7, saeed.bishara@xxxxxxxxx wrote: > how can I create raid 5 array that preserves the contents of a given > disk (part of the array)? > I can do that in two steps, raid 5 on two disks then reshape it to be > real raid5, but is there a direct way to do it? What do you mean by "real raid 5". Two disks are just as much an array as 10. What do you mean by "direct". If I understand your requirements correctly, there are two obvious steps. 1/ make the data appear in a raid5 2/ change the number of devices in the raid5. Are two steps too many? I guess I don't understand your question. 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