Re: udev, MD, and stripes of mirrors

[Jussi Silvennoinen <jussi_nahant silvennoinen net>]

>     mdadm --create /dev/md0 --level=mirror --raid-devices=2 /dev/sd{b,h}1
>     mdadm --create /dev/md1 --level=mirror --raid-devices=2 /dev/sd{c,i}1
>     mdadm --create /dev/md2 --level=mirror --raid-devices=2 /dev/sd{d,j}1
>     mdadm --create /dev/md3 --level=mirror --raid-devices=2 /dev/sd{e,k}1
>     mdadm --create /dev/md4 --level=mirror --raid-devices=2 /dev/sd{f,l}1
>     mdadm --create /dev/md5 --chunk=256 --level=stripe --raid-devices=5 /dev/md{0,1,2,3,4}
> 
> >From pestering the linux-raid mailing list, I learned that "stacked"
> MD devices (a MD device that has another MD device as a subcomponent)
> weren't properly supported by the 2.4 kernel, although there were some
> hacks present so that the most useful case (a stripe of mirrors) would
> mostly work.

Out of curiosity, why this raid5 over mirrors instead of 
raid10? Would't that give you more speed, capacity and fault-tolerance?

-- 

  Jussi