On 02/06/19 10:43, keld@xxxxxxxxxx wrote: > 3. migrating from one raid type to another, some of these are more important > than others. IMHO migrating from current md raid10 RAID-0+1 to RAID-1+0 > layouts would be quite important. Note that raid-10 is not raid-1+0 is not raid-0+1 as far as linux is concerned. Provided that you have more disks in the array than you have disks in your raid-0 striped set, raid-10 will spread the mirror across disks. So you can have raid-10 across 3 drives, while you need four drives for 1+0 or 0+1. Cheers, Wol
