Hello, On Sun, Feb 26, 2017 at 03:37:24PM +0100, Reindl Harald wrote: > is it somehow possible to change a existing md RAID10 array from "2 > near-copies" to "2 far-copies" and what would be the mdadm syntax? https://manpages.debian.org/jessie/mdadm/mdadm.8.en.html suggests that --grow --layout can be changed on RAID-10. I have never tried it myself. Experiment with loop devices. It looks like the syntax would be: # mdadm --grow /dev/mdX --layout=f2 Cheers, Andy -- https://bitfolk.com/ -- No-nonsense VPS hosting > The optimum programming team size is 1. Has Jurassic Park taught us nothing? — pfilandr -- 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