RAID 0+1 (Problem)

[Bruno Wolff III]

On Wed, Mar 22, 2006 at 13:54:07 +1100,
  ECJ <jakosalem at telpacific.com.au> wrote:
> Hello All,
> 
> I followed the steps in the link below but my RAID 10 array had a problem
> after a reboot.
> What I did was:
> - constructed 2 RAID0s (3x73GB each)
> - combined these 2 into a RAID1
> - mkfs.ext3 /dev/md45 (the name of my RAID10 array)
> - mounted it on /data

I am not sure about your question, but I did notice that you built your
array in an unusual manner. Usually you want to do raid 1 first and then
stripe accross the raid 1 mirrors. The problem with this is that are multiple
drive failure sittions where a striped mirror would still be running where
as a mirrored stripe would be dead in the water. (Though in the latter case
you could still recover stuff after replacing the bad drives.)