I too am looking at this. My current setup is 4x 500GB drives and I want to move to 3x >=1TB drives. My usable space should increase from 1.5TB to >= 2TB with this move if possible. I'm fairly new to linux-raid in general but I know you can replace drives with bigger ones. You just can't use their space until all drives in the array are of that size. So I'm thinking of replacing 3 of the 500's with the 1 TBs. Then fail and remove the 4th drive (assuming enough free space) and somehow forcing a reshape on the remaining 3 drives. Not sure if that is possible but I can't imagine why it wouldn't be. After the resync, finally grow to the new size and be done. Can someone tell me if this is even possible? I saw the one reply in Nov. to Alex's email but I don't have another machine to swap the disks too. -- 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